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
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
A
C
C
D
E
E
E
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F