B
B
- B
- B
<
<
- <
- <
O
O
- O
- O
O
O
- O
- O
O
O
- O
- O
2
2
- 2
- 2
1
1
- 1
- 1
1
1
- 1
- 1
a
a
- a
- a
f
f
- f
- f
1
1
- 1
- 1
b
b
- b
- b
/
/
- /
- /
A
A
- A
- A
/
/
- /
- /
S
S
- S
- S
<
<
- <
- <
h
h
- h
- h
z
z
- z
- z
&
&
- &
- &
&
&
- &
- &
h
h
- h
- h
h
h
- h
- h
h
h
- h
- h
3
3
- 3
- 3
<
<
- <
- <
<
<
- <
- <
<
<
- <
- <
<
<
- <
- <
<
<
- <
- <
h
h
- h
- h
<
<
- <
- <
<
<
- <
- <
h
h
- h
- h
<
<
- <
- <
h
h
- h
- h
h
h
- h
- h
B
B
- B
- B
<
<
- <
- <
b
b
- b
- b
/
/
- /
- /
<
<
- <
- <
2
2
- 2
- 2
2
2
- 2
- 2
<
<
- <
- <
2
2
- 2
- 2
<
<
- <
- <
2
2
- 2
- 2
3
3
- 3
- 3
<
<
- <
- <
2
2
- 2
- 2
2
2
- 2
- 2
<
<
- <
- <
2
2
- 2
- 2
<
<
- <
- <
2
2
- 2
- 2
3
3
- 3
- 3
<
<
- <
- <
R
R
- R
- R
r
r
- r
- r
<
<
- <
- <
<
<
- <
- <
<
<
- <
- <
<
<
- <
- <
h
h
- h
- h
1
1
- 1
- 1
4
4
- 4
- 4
W
W
- W
- W
w
w
- w
- w
<
<
- <
- <
<
<
- <
- <
W
W
- W
- W
w
w
- w
- w
W
W
- W
- W
w
w
- w
- w
C
C
- C
- C
0
0
<
<
- <
- <
&
&
- &
- &
<
<
- <
- <