There are 107 people in the dance group of the Children's Palace, and 31 people in the chorus group are twice as many as the dance group. How many people are there in the Children's Palace chorus?
少年宫舞蹈组有107人，合唱队的人数比舞蹈组的2倍少31人．少年宫合唱队有多少人？
<gadget id="calculator">107 * 2</gadget>
<output>214</output>

<gadget id="calculator">214 - 31</gadget>
<output>183</output>

<result>183</result>