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