How many different four-digit even numbers can be formed with the numbers 0, 1, 2, 3, 4, and 5 without repeating numbers.
用数字0、1、2、3、4、5可以组成多少个不同的没有重复数字四位偶数．
<gadget id="calculator">2 * 4 * 12</gadget>
<output>96</output>

<gadget id="calculator">60 + 96</gadget>
<output>156</output>

<result>156</result>