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my (%data); while (<DATA>) { ... 200-300,ER,576 100-250,MA,150 75-300,MA,350
# # Variables, throughout run ... ER 300|576 400|576
if (defined($data{$f1}{$f2}{'data'} { my (%uniq); ... } $v4 .= join( ':', sort(keys(%uniq)) ); }