How many different four-digit numbers can be formed using the five numbers 8, 6, 3, 0, and 1? (The same four-digit number cannot be repeated)
用8、6、3、0、1这五个数字，可以组成多少个不同的四位数．(同一个四位数数字不能重复)
<gadget id="calculator">4 * 4 * 3 * 2</gadget>
<output>96</output>

<result>96</result>