The children skipped rope. Xiaohong jumped 56 times. Xiaoli jumped 18 times less than Xiaohong's three times. How many times did Xiaoli jump?
小朋友跳绳，小红跳了56下，小丽跳的比小红跳的3倍少18下，小丽跳了多少下？
<gadget id="calculator">56 * 3</gadget>
<output>168</output>

<gadget id="calculator">168 - 18</gadget>
<output>150</output>

<result>150</result>