AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
aAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
0
0
0
1
ABCDEFG
C
B
A
2
ABCDEFG
b
a
3
ABCDEFG
a
v
4
ABCDEFG
ABCDEFG
ABCDEFG
5
ABCDEFG
ABCDEFG
ABCDEFG
6
ABCDEFG
ABCDEFG
ABCDEFG