00-1F (non-printing)
20-2F Space ! " # $ % & ' ( ) * + , - . /
30-3F 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
40-4F @ A B C D E F G H I J K L M N O
50-5F P Q R S T U V W X Y Z [ \ ] ^ _
60-6F ` a b c d e f g h i j k l m n o
70-7E p q r s t u v w x y z { | } ~
7F DEL (non-printing)