A cuboid is exactly divided into 3 cubes of the same size. It is known that the surface area of a cube is 3cm**2. What is the surface area of the original cuboid?
一个长方体正好分割成3个一样大的正方体，已知一个正方体的表面积是3cm**2，原长方体表面积多少．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

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

<gadget id="calculator">(1/2) * 4</gadget>
<output>2</output>

<gadget id="calculator">9 - 2</gadget>
<output>7</output>

<result>7</result>