1b
2b
3b
4b
5b
6b
7b
8b
9b
1b
2b
3b
4b
5b
6b
7b
8b
9b
1b
2b
3b
4b
5b
6b
7b
8b
9b
1b
2b
3b
4b
5b
6b
7b
8b
9b
1c
2c
3c
4c
5c
6c
7c
8c
9c
1c
2c
3c
4c
5c
6c
7c
8c
9c
1c
2c
3c
4c
5c
6c
7c
8c
9c
1c
2c
3c
4c
5c
6c
7c
8c
9c
1d
2d
3d
4d
5d
6d
7d
8d
9d
1d
2d
3d
4d
5d
6d
7d
8d
9d
1d
2d
3d
4d
5d
6d
7d
8d
9d
1d
2d
3d
4d
5d
6d
7d
8d
9d
we
ws
ww
wn
we
ws
ww
wn
we
ws
ww
wn
we
ws
ww
wn
dr
dg
dw
dr
dg
dw
dr
dg
dw
dr
dg
dw
h
h
h
h
f1
f2
f3
f4
s1
s2
s3
s4