A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P