After sawing a 3-meter-long cuboid into 4 pieces, the surface area increases by 36 square centimeters. What is the volume of the original cuboid in cubic centimeters?
一根长3米的长方体木料锯成4段后，表面积增加了36平方厘米，原来长方体的体积是多少立方厘米．
<gadget id="calculator">36 / 6</gadget>
<output>6</output>

<gadget id="calculator">3 * 100</gadget>
<output>300</output>

<gadget id="calculator">6 * 300</gadget>
<output>1_800</output>

<result>1_800</result>