If the six faces of a cube are painted red and yellow respectively, how many faces have the same color no matter how they are painted.
给一个正方体木块的6个面分别涂上红、黄两种颜色，则不论如何涂都有多少个面的颜色相同．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>