How many centimeters are left after making a 5 decimeter long iron wire into a cuboid with a length of 6 centimeters, a width of 4 centimeters and a height of 2 centimeters?
把一根长5分米的铁丝，做成一个长6厘米，宽4厘米，高2厘米的长方体后，还剩多少厘米．
<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<gadget id="calculator">6 + 4 + 2</gadget>
<output>12</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">50 - 48</gadget>
<output>2</output>

<result>2</result>