1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
4
5
6
6
6
6
6
6
6
7
7
7
9
9
F
F
F
F
F
F
F
F
F
F
F