The Available Characters: 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 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 1 2 3 4 5 6 7 8 9 0 ! @ # $ % ^ & * ( ) , . ? < > ; : " / \ | = + - _ [ ] { } ` ~
