A roll of rope is 243 meters long, 42 meters are used for the first time, and 62 meters are used for the second time, how many meters are left?
一卷绳长243米，第一次用去42米，第二次用去62米，还剩多少米？
<gadget id="calculator">243 - 42 - 62</gadget>
<output>139</output>

<result>139</result>