characters combination length for id code example
Example: characters combination length for id
a-z is 26, times 2 (for uppers as well) is 52,
plus 10 (0-9) is 62. Each ID is 8 chars long,
so the result is 62^8, which is pretty biga-z is 26, times 2 (for uppers as well) is 52,
plus 10 (0-9) is 62. Each ID is 8 chars long,
so the result is 62^8, which is pretty big