2
1
2
1
2
1
1
0
1
0
1
0
2
1
1
0
1
0
1
0
3
8
2
1
2
1
4
6
2
1
3
4
1
0
2
1
5
5
2
1
2
3
5
15
1
0
1
0
2
2