9
8
7
6
5
4
3
2
1
c c
c
0 0 c c I 0 I 0
I I
c c
c
0 0 I I 0 9 8 7
0 0 I I 0 6 5 4
0 0 I I 0 3 2 1
a
0 a I a 0 0 a a
a a
0 a I 0 a 0 0 a
a
0 0 I 0 I I 0 I
d 4 4
e 5 5
f 6 6
b
c b
b c
R 9 9
W 8 8
X 7 7
0 9 I 9 R R 9 R
0 8 I 8 W I 8 I
0 7 I 7 I X 0 X
9 f f
8 e e
7 d d
f 3 3
e 2 2
d 1 1
3 R R
2 W W
1 X X
b
1 1
1
2 2
2
3 3
3
4 4
4
5 5
5
6 6
6
7 7
7
8 8
8
9 9
9