1
LLLL
2
SSSS
3
AAAAAAAAA
4
LKL
5
EEEEEEE
6
JJJJ
7
SSSSSSSSSSSSSS
8
WER
9
RRRR
10
RRRRRRRRRR
11
OPOP
12
GGGGGG
13
HHJ
14
HHHHHHHHHHHH
15
YYYYYYY
16
TTTT
17
YYYYYYYYYYYYYYYYY
18
KKKKKKKKK
19
UIUI
20
DS
16
5
15
2
14
12
3
1
7
8
13
19
6
10
4
17
18
11
20