A big round table has 12 seats. Xiao Ming wants to sit with his mother. How many different ways are there?
一张大圆桌有12个座位，小明想和妈妈坐在一起，一共有多少种不同的坐法．
<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<result>24</result>