There are 5 small sticks of different lengths, and they are placed into 10 different triangles. The perimeters of these triangles are 37, 40, 42, 42, 44, 46, 47, 48, 51, and 53 (in centimeters). What is the product of the length of the longest rod and the length of the shortest rod?
有5根长度不同的小棒，用它们摆成10个不同的三角形，这些三角形的周长分别是37，40，42，42，44，46，47，48，51，53(单位厘米)．最长的小棒与最短的小棒长度数的乘积是多少？
<gadget id="calculator">37 + 40 + 42 + 42 + 44 + 46 + 47 + 48 + 51 + 53</gadget>
<output>450</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">10 * (3/5)</gadget>
<output>6</output>

<gadget id="calculator">450 / 6</gadget>
<output>75</output>

<gadget id="calculator">75 - 38 - 22</gadget>
<output>15</output>

<gadget id="calculator">35 - 15</gadget>
<output>20</output>

<gadget id="calculator">24 - 15</gadget>
<output>9</output>

<gadget id="calculator">20 * 9</gadget>
<output>180</output>

<result>180</result>