There is a cylindrical wood with uniform thickness, 2 meters long. According to the needs, after sawing it into two cylindrical woods with a length of 1 meter, the surface area increases by 628 square centimeters. What is the original volume of this piece of wood in cubic centimeters?
有一根粗细均匀的圆柱形木料，长2米，根据需要，现把它锯成长1米的两根圆柱形木料后，表面积增加了628平方厘米．这根木料原来的体积是多少立方厘米．
<gadget id="calculator">628 / 2</gadget>
<output>314</output>

<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">314 * 200</gadget>
<output>62_800</output>

<result>62_800</result>