Pleasant Goat and Boiling Goat play shuttlecock. Boiling Goat kicked a total of 81 times for three times, and Pleasant Goat kicked 25 times for both the first and second times.
喜羊羊和沸羊羊踢毽子．沸羊羊三次一共踢81下，喜羊羊第一次和第二次都踢了25下，要想超过沸羊羊，喜羊羊第三次最少要踢多少个．
<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">81 - 50</gadget>
<output>31</output>

<gadget id="calculator">31 + 1</gadget>
<output>32</output>

<result>32</result>