2
1
1
0
1
0
2
5
3
4
3
7
2
1
2
1
6
9
1
0
2
1
2
3
2
1
3
2
2
1
3
2
1
0
4
4
4
8
1
0
1
0
1
0
2
1
2
1
2
3