SYMBOL FOR NEGATIVE ACKNOWLEDGE
SYMBOL FOR NULL
SYMBOL FOR START OF HEADING
SYMBOL FOR ACKNOWLEDGE
SYMBOL FOR LINE FEED
SYMBOL FOR VERTICAL TABULATION
SYMBOL FOR FORM FEED
SYMBOL FOR CARRIAGE RETURN
SYMBOL FOR END OF TRANSMISSION BLOCK
SYMBOL FOR CANCEL
SYMBOL FOR SUBSTITUTE
SYMBOL FOR FILE SEPARATOR
SYMBOL FOR GROUP SEPARATOR
SYMBOL FOR SPACE
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