M
M
M
M
M
M
I
I
I
I
I
I
C
C
C
C
C
C
U
U
U
U
U
U
B
B
B
B
B
B
E
E
E
E
E
E

3X3

2X2

R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L B
U R L