Xiaoya insists on exercising by skipping rope every day. She jumped 138 on the first day, 47 less than twice as much on the second day, and 56 more than the third day. How much did Xiaoya dance on the third day?
小亚坚持每天跳绳锻炼身体．她第一天跳了138个，第二天跳的比第一天的2倍少47个，比第三天多56个．小亚第三天跳了几个？
<gadget id="calculator">138 * 2</gadget>
<output>276</output>

<gadget id="calculator">276 - 47 - 56</gadget>
<output>173</output>

<result>173</result>