A cylinder with a base diameter of 2 centimeters is cut into two pieces. The sum of the surface areas of the two cylinders is 75.36 square centimeters. What is the volume of the original cylinder in cubic centimeters?
一个圆柱体，底面直径是2厘米，把它截成两段后，这两个圆柱体的表面积和是75.36平方厘米，原来圆柱体的体积是多少立方厘米．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">75.36 - 12.56</gadget>
<output>62.8</output>

<gadget id="calculator">3.14 * 2</gadget>
<output>6.28</output>

<gadget id="calculator">62.8 / 6.28</gadget>
<output>10</output>

<gadget id="calculator">3.14 * 10</gadget>
<output>31.4</output>

<result>31.4</result>