After learning the arrangement, we know that people with different arrangements are 10, namely10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 = 3628800, which is 9942, which is impossible.

Note: There are ten seats, so there are 10 possibilities for whoever takes the first seat, and nine possibilities for the second seat to be chosen by the remaining nine people, and so on, and finally the number of times of this arrangement is obtained.