2
0
1
0
4
0
3
0
4
2
1
0
2
0
3
0
4
0
4
0
4
0
4
0
1
0
7
0
4
0
3
0
4
0
2
0
4
0
3
0
2
0
2
0
3
0
3
0
2
0
2
0
1
0
5
0
1
0
2
0
1
0
1
0
4
0
