Printable ASCII Characters
| capital letters | A, B, ... Z |
| digits | 0, 1, ... 9 |
| space | (space) |
| lowercase letters | a, b, ... z |
| apostrophe | ' |
| left parenthesis | ( |
| right parenthesis | ) |
| plus sign | + |
| comma | , |
| hyphen | - |
| period | . |
| solidus or slash | / |
| colon | : |
| equal sign | = |
| question mark | ? |