There are 12 plates on each square table, and 13 plates on each round table. If there are 122 plates in total, how many plates are there in the round table and the square table?
每张方桌放有12个盘子，每张圆桌放有13个盘子，若共有盘子122个，则圆桌和方桌共有多少张．
<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<result>10</result>