1
cum
0
1
2
0
10
1
0
0
2
2
2
2
1
1
0
3
1
1
0
0
1
1
1
1
0
1
2
2
1
1
4
1
2
1
1
1
2
0
1
1
1
1
0
1
1
0
1
1
2
