Base-36 number system uses 36 symbols to code information. Most commonly, these symbols are, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 'A to Z' (or alternatively 'a to z').
Base-9 (also called nonary) number system uses nine symbols to code information. Most commonly, these symbols are, 0, 1, 2, 3, 4, 5, 6, 7 and 8.