4
N
A
N
M
N
4
N
0
I
M
0
4
4
I
A
I
A
I
N
A
A
0
M
4
N
A
0
4
A
A
N
I
M
A
I
A
N
N
4
4
I
A
0
0
M
A
A
I
0
M
A
A
M
M
0
4
0
A
A
A
M