题目链接：https://www.luogu.org/problemnew/show/P3798
没有解析，只有答案，别问我答案哪来的
=======1
0
2
=======2
783128081
=======3
8
=======4
3932100
3670024
=======5
143360
=======6
2932
=======7
32
=======8
164
=======9
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.80
=======10
5468
