How many non-repeated four-digit numbers can be formed by using the five numbers 0, 1, 2, 5, and 7 that are divisible by 25.
用0，1，2，5，7这五个数字可组成多少个能被25整除的数字不重复的四位数．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

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

<gadget id="calculator">6 + 4 + 4</gadget>
<output>14</output>

<result>14</result>