How many even numbers are there in the three-digit number composed of three of the four numbers 0, 1, 2, and 3?
由0、1、2、3这四个数字中的三个组成的三位数中，有多少个双数．
<gadget id="calculator">1 * 3 * 2</gadget>
<output>6</output>

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

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<result>10</result>