A	B
A	D
A	E
B	C
C	D
C	E
D	E
E	F
F	G
F	H
F	I
G	J
H	K
I	L
J	M
K	M
L	M
A	C
A	F
B	D
B	E
C	F
D	F
E	G
E	H
E	I
F	J
F	K
F	L
G	M
H	M
I	M
A	G
A	H
A	I
B	F
C	G
C	H
C	I
D	G
D	H
D	I
E	J
E	K
E	L
F	M
A	J
A	K
A	L
B	G
B	H
B	I
C	J
C	K
C	L
D	J
D	K
D	L
E	M
A	M
B	J
B	K
B	L
C	M
D	M
B	M
