Korrutamine ja jagamine ühekohalise arvuga

$\begin{array}{ccccccc}\mathrm{}& 6& 3& 1& 2& 8& 4\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3ea866bb-2e68-4332-8945-5dfdef9335d1"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="321d449f-a7f6-4881-90d6-4551e31eeadf"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="bdb6ac88-d362-4b43-a3cc-655fcb648701"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="7c169d47-2193-4393-a527-e58712535b1d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="337a2b9b-26e1-4b3d-9309-00222ac26fec"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="dd829a56-38b5-4977-88ff-cde761fc5067"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cf99f726-faef-4d09-82ae-3e558055e349"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="6d481cad-8303-4453-9c55-9eaee824bfb3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="5a729ea4-4717-4b92-92c2-51480457a99b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8e84d74e-ca9a-4127-868d-84e2f3d7cb04"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8c848e90-91aa-4533-a3d5-c65aab0c22bd"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="fc9b8149-2907-450d-8aa7-57fca245ad6f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="baa09b6c-6e5f-43c7-84df-115522797687"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="18dbfe06-4d42-43f3-a52f-ab96d8dfac76"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c6321266-a632-44d2-8b5a-539c5dd7c2a3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{ccccccccc}\mathrm{:}& 6& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="236ca795-9928-45d8-970d-b021ea0459b5"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="0c206ed8-5524-48d1-9087-31e507f70c6a"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="90fbc11c-3dc3-4a82-a44c-9b3f86c1c7bf"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="36aab2d4-02f1-4494-96fb-6f5d5e99f26c"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8507e195-3048-469e-a866-c09b6bd8c7fe"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="1f6563ec-7f21-430b-8586-bc47c0ed052e"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$

$\begin{array}{ccccccc}\mathrm{}& 5& 2& 7& 7& 1& 5\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="bd32731a-c754-4ec5-a8e2-e4a4cd1fd690"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="14f7f42c-370e-418a-9647-6f82030a60df"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="6b54c13f-6d84-4bdf-b382-5d9dd96c2f93"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="07b26ca4-1a21-438e-bd10-c900cf6c9003"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="4202b9e5-42f4-4f35-9206-935fee3831a6"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="f1090ba2-9d12-4afe-88f4-213bd7ec65f1"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="85173939-7fed-46b1-99fb-b6332c51d2ff"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="62a5c180-12e8-4e2f-aec3-e1c7f6bffd5d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="6013d84f-a078-4e39-8287-e112589a3836"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="b7a5ee7d-4e7b-4450-9616-5bd29cd6b7db"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c090aff6-ef90-465a-9f14-7fb651ca5905"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="b64a71ed-3425-4ffb-8c3a-6858f250831e"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{–}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="b9908349-a2bc-45e6-b01a-a43945e553b3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="fc0cf76a-0c15-4672-a30f-11d8b253b62e"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ddec06bc-c2c6-495d-b0f2-70abc04709b0"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="24289a7e-bcf6-469a-acbc-8239727d71ec"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cb4d1856-c0fe-48fd-9e95-215efbcba4b2"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="9d2a9232-0e95-4693-b330-e9e55a5acf22"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{cccccccc}\mathrm{:}& 9& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="39ed098e-9c29-4b66-b1cd-3d0a3f298e41"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3459422b-89e4-462b-8583-2b09f44815a0"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="b295dee7-f2df-4adc-9c1a-ed5f5ae1caff"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="7f8f3f16-0fb8-4dea-a1c0-47861bf3c235"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="2bd7c3c9-574d-4552-afc3-a23130b6928d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$

$\begin{array}{ccccccc}\mathrm{}& 7& 2& 5& 2& 8& 8\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="d8c51b60-13c7-418e-b5d8-8b4e4a046dd3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="32ebe07e-47cc-423b-960a-7c6cee967b92"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="4cd3db31-3996-4640-8b70-6ed9251c5c7c"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c6d08bfa-4dc8-4cf1-9cb0-e06ab873eb9b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="9b7d43a8-2d69-4e53-b8cd-0c8aa09a3859"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3944a7e0-4ac2-4be1-9152-2c21c4ecb3fc"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c565fc00-8a2d-479c-bcc5-833060fe8adc"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="abc842d9-0cea-42d7-a2c0-07c84e803f7f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="dada9057-945c-4811-8637-b5cc14456c77"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="1315505c-5d24-452c-8690-a46ef88a27fd"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & & & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8a4cc7d6-df20-4c27-a148-f1b981ba7ffe"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="5c321dbf-718b-41b6-ae95-e5e811e6b6f5"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{cccccccc}\mathrm{:}& 8& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c423a0b9-c5da-4da6-86d6-53f5090bd411"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="1070b051-a00b-4fce-b1bd-422bd3c46b0e"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="676eb95a-72d1-46ed-9377-ffc8266d41e8"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="2a6d7cfd-38da-4675-ad67-4b02141b107a"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="d37ff474-083d-4b69-8aaf-0a8236d5121d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$

$\begin{array}{ccccccc}\mathrm{}& 2& 9& 1& 3& 7& 8\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="67883f1f-97ba-4a4b-a442-4a4803d51eae"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="2018af8b-ed58-4f08-87ed-facadc844788"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="1cee708a-52ed-45a8-a836-89f83c8364f7"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="6895adf8-a655-406a-af39-ccc2a5615e1f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="7badd9c2-1c1c-4192-9978-6f729b7e964d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="15e99447-2167-42a5-9631-20927c194b90"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="0e276600-186d-45d6-882a-28b12e44ca60"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="e7917249-2f34-4147-8457-4ddb4869ae4d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="37796472-bdee-4aeb-9d66-1233069dba29"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ca253e9e-8da0-4a1f-ba74-5bf99fa9e47b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="37497392-2ab4-4c7e-9a04-83d76200d80b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8e92d5ff-7c9e-4ddb-87f1-4ebade5743dd"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{–}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8c54f328-abd8-449f-b989-e41f035ec5a8"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cf9e204b-1117-4efa-9a73-08448d28dad7"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3e2cffd4-42c9-4765-970a-1c6e871da4f3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="a6eb3f6b-98c7-432a-9571-9edd91958295"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="459cc8ea-56b3-473f-93ad-ebfb95b79cc3"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ab6cc290-7c37-4000-95d0-e418db494e1f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{cccccccc}\mathrm{:}& 6& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="702b61ed-e61b-49a6-9b26-4e27e2e976fe"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8cc30482-a468-42e0-84b4-949d4bbc640f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ddbf9715-f306-4967-86bb-ff45e60d8be8"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cdbc8334-f005-4fc7-b5a1-f05e1cc7870c"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8cfbe850-bb18-404c-8c68-b3bcdfcf2d1a"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$

$\begin{array}{ccccccc}\mathrm{}& 1& 2& 7& 4& 1& 5\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="b57fe27f-bfe0-4446-9d11-5cfea1a82033"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="47f6ff88-ebee-4cb9-8fe9-d32b50c86469"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="63b2f4a1-d2c1-4f67-af45-9bb21fd6d91a"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cf9c05e3-fd7c-4bc3-9384-a676dbe87f77"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="9478bd28-c68e-431d-8a63-fda8419cf246"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="debf5ec2-a923-4197-95be-519ac57d731b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c63028c9-e1bd-4870-9573-14f0530b0469"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="05123e5d-6e63-4ecf-8707-a46ca9befbb2"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="5ab04631-dd07-4a89-bc0b-8ca673852f21"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="65abf55a-0abf-4141-906a-35c651c0fa7e"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="0cbea739-8c67-4c38-8ffb-95cd8017a94b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="06e83562-4979-45ca-9696-7314dc7644a0"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{–}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="7e124349-ccb4-4bc2-a2aa-92b41776c2db"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="246efa04-f059-4cdf-8b59-cdc0a7b91529"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="4a94e869-e3e6-4dab-831c-9ee37b9a4d55"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="dbad37a6-7b6b-4166-a74c-92e7ae2b0384"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ba27d290-fca9-41b1-8609-30a2e4a552a6"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ff2cbb05-faab-4143-b80d-e848f3a07930"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{cccccccc}\mathrm{:}& 5& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="a0176017-e6d6-41db-895c-79735956f6d0"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="035da5cc-a546-4e51-96a6-1f0c06a58044"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="cd2c6053-8001-4f85-9882-9c7d8c5a9dc5"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="85735ce0-12f8-434d-a76e-8f3e57c60ce4"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="58b82c58-5cdf-4fcc-b739-a365ef9bc6b7"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$

$\begin{array}{ccccccc}\mathrm{}& 4& 2& 3& 1& 1& 5\\ –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="fdb5acf5-5be8-4494-8ef9-39bcf7401fd9"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="f2783a96-40ac-48bf-9fbe-07c6a2e5925d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& & \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="5d6d92a7-fa96-4e7d-9f95-e19b7ee05004"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="767616a7-3d99-4f07-85fc-29b034d73eea"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="2328a6f2-4881-488a-9af2-f9b41f77b59c"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="0a7f2d67-a2c9-428d-8978-840382174f6d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="45890001-a1d5-435d-bb0c-7090e4efdb41"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="df1f76de-a80a-46be-80ee-65ba6855f7d9"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="a7762a52-6a12-49ee-a1cd-88675c3af5b6"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="35133f02-14f3-4d29-bd40-b44936f888e7"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="7145a0c5-6051-4d72-b953-dc9654b3e510"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="8bdc0105-91c7-4bb2-8570-624b2fdc3881"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{–}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="f4e45e73-3523-4470-b28e-142cf6cf6f5b"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="fed50f4f-7866-4f44-b704-71e1d42a6682"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& & \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="c4de042b-0f87-4af8-8a78-e9caf337f05f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="a75da637-910a-4aa3-ada8-29e985ea85c2"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\\ \mathrm{}& \mathrm{}& \mathrm{}& & –& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="ae89ea33-7506-4208-b02d-cb029adb8f5d"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}& \mathrm{<semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="9af11b75-2ccb-4d54-a2be-9a9c1b1c0b68"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics>}\end{array}\begin{array}{cccccccc}\mathrm{:}& 5& \mathrm{=}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3076fa3c-cab5-47be-8948-6230b5be108c"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="dbce8909-a269-473b-9e2b-43e613f2843f"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="1c298354-3459-4c6f-a88e-01b505448b61"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="9b54ab48-ffa1-4863-b745-aca52f564eb0"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}& \mathrm{<mi><semantics\; class="mathml-form-input"><annotation-xml\; encoding="application/xhtml+xml"><span\; class="gap\; fourth"\; data-key="3542feda-5c03-431d-9d20-14f4113f26bf"\; contenteditable="true"\; xmlns="http://www.w3.org/1999/xhtml"\; data-empty-is-error="true"></span></annotation-xml></semantics></mi>}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\\ \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}& \mathrm{}\end{array}$