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#!/usr/bin/perl -w use strict; ... sort { $a->[1] <=> $b->[1] or $a->[2] <=> $b->[2] } map { [ $_, unpack('x12a9xa12', $_) ] } @original;
#!/usr/bin/perl -w use strict; ... sort { $a->[0] <=> $b->[0] or $a->[1] <=> $b->[1] } map { [ unpack('x12a9xa12', $_) ] } @original;