A cuboid box is 12 cm long, 10 cm wide, and 5 cm high. What is the minimum square centimeter of cardboard used to make this carton?
一个长方体纸盒，长是12厘米，宽是10厘米，高是5厘米．做这个纸盒至少要用多少平方厘米的硬纸板？
<gadget id="calculator">12 * 10</gadget>
<output>120</output>

<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<gadget id="calculator">120 + 60 + 50</gadget>
<output>230</output>

<gadget id="calculator">230 * 2</gadget>
<output>460</output>

<result>460</result>