1 - [ouo] Hello world!
2 - [ouo] Hello world!
3 - [ouo] Hello world!
4 - [ouo] Hello world!
5 - [ouo] Hello world!
6 - [ouo] Hello world!
7 - [ouo] Hello world!
8 - [ouo] Hello world!
9 - [ouo] Hello world!
0 - [ouo] Hello world!
A - [ouo] Hello world!
B - [ouo] Hello world!
C - [ouo] Hello world!