A wire can surround a cuboid with a length of 4 cm, a width of 2 cm, and a height of 3 cm. If this wire surrounds a cube, what is the length of the sides of the cube?
用一根铁丝可以围一个长4厘米、宽2厘米、高3厘米的长方体，如果用这根铁丝围一个正方体，这个正方体的棱长是多少？
<gadget id="calculator">4 + 2 + 3</gadget>
<output>9</output>

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9 * (1/3)</gadget>
<output>3</output>

<result>3</result>