1
1
2
2
1
2
1
1
2
1
1
1
1
2
3
1
2
3
1
3
1
2
3
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
7
1
2
1
1
2
2
1
2