bundle of wires is 150 meters long, 19 meters were used for the first time, and 3 times of the first time was used for the second time. How many meters is this bundle of wires shorter than the original one?
一捆电线厂150米，第一次用去了19米，第二次用去的是第一次的3倍，这捆电线比原来短了多少米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">19 * 4</gadget>
<output>76</output>

<result>76</result>