-------------------------
| | ABC | DEF |
| 1 | 2 | 3 |
-------------------------
| GHI | JKL | MNO |
| 4 | 5 | 6 |
-------------------------
| PQRS | TUV | WXYZ |
| 7 | 8 | 9 |
-------------------------
| | | |
| * | 0 | # |
-------------------------
Decode phone key pad number. e.g "python phone_keypad.py 7773323444664 84433 22244474433777"
positional arguments: N a string of numbers separated by spaces
optional arguments: -h, --help show this help message and exit