Divide the 1.8-meter-long cylindrical steel into three sections according to the ratio of 1:2:3, and the surface area increases by 56 square centimeters compared to the original one. Then the volume of the longest section of the three cylindrical steel pipes is larger than that of the shortest section. how many cubic centimeters
把长为1.8米的圆柱形钢材，按1：2：3分成三段，表面积比原来增加了56平方厘米，那么这三段圆柱形钢管中最长的一段的体积比最短的一段的体积多多少立方厘米
<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/2) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">56 / 4</gadget>
<output>14</output>

<gadget id="calculator">180 * (1/3) * 14</gadget>
<output>840</output>

<result>840</result>