1
1
1
1
1
1
1
1
1
1
1
1
4
6
6
6
6
6
6
8
8
8
9
A
A
A
B
E
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F