68
99
04
03
02
I
60
20
A
05
06
31
6-8
x x
x
4 3 2
B
78
C
7-8
45
50
D
07
4-5
E
F
5 4 3
G
H
J
K
81
70
L
8-10
M
N
00
W
01
O