The students used thousands of paper cranes to decorate the classroom for a party. There are 12 cranes in each string, and 12 strings are needed to decorate the classroom. How many paper cranes do you need to fold in total?
同学们用千纸鹤布置教室开联欢晚会．每串12只，布置教室要用12串，一共需要折多少只纸鹤？
<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<result>144</result>