A, B, and C are arranged to sit in a row of 6 seats. If no two people can sit next to each other, how many different ways of seating are there?
A、B和C被安排坐入排成一列的6个座位中，若任何二个人都不可以相邻而坐，共有多少种不同的入座方式．
<gadget id="calculator">4 * 3 * 2 * 1</gadget>
<output>24</output>

<result>24</result>