Xiaohong, Xiaoli, and Xiaogang skip rope. Xiaohong jumped 35 times and Xiaoli jumped 41 times. The three of them jumped 43 times on average. How many times did Xiaogang jump?
小红、小丽、小刚三人跳绳，小红跳了35下，小丽跳了41下，他们三人平均每人跳43下，小刚跳了多少下？
<gadget id="calculator">43 * 3</gadget>
<output>129</output>

<gadget id="calculator">129 - 35 - 41</gadget>
<output>53</output>

<result>53</result>