Alphanumeric
From FIS Freestyle wiki
Alphanumeric is a combination of alphabetic and numeric (sometimes shortened to alphameric), and is used to describe the collection of Latin letters and Arabic digits used by much of western society. There are either 36 (single case) or 62 (case-sensitive) alphanumeric characters. The alphanumeric character set consists of the numbers 0 to 9 and letters A to Z.
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