1
cum
0
1
2
1
1
4
3
3
3
4
3
3
3
4
2
1
1
2
3
3
4
1
2
2
2
5
2
0
3
1
1
5
1
1
2
4
4
4
2
2
6
2
2
1
1
3
1
0
8
