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while ($string=~m{(B|C|P|T|Z|a|b|d|h|k|n|p|q|u|v|x)}g){ $count=$count+($tbsz*0.5625); }
while ($string=~m{[BCPTZabdhknpquvx]}g){ $count+=($tbsz*0.5625); }
my %start_table = ( ... } }