5 people go to the cinema to watch a movie, there are 6 seats left in a certain row, how many different arrangements are there?
5个人去电影院看电影，某一排还剩下6个座位可以做，一共有多少种不同的排列方式．
<gadget id="calculator">6 * 5 * 4 * 3 * 2</gadget>
<output>720</output>

<result>720</result>