13
Hello, World!
15
Hello, [ World!
15
Hello, ] World!
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
\
[]
1
1st
2nd
0
81
1024
4
5
1
q
q\
\
\