Every language is based upon an alphabet of characters. The English alphabet for example contains 26 letters whose capitals are written
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
The digits are generally written in Aramaic form
0 1 2 3 4 5 6 7 8 9
The character set for a programming language typically begins with these 36 characters.
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