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Use of uninitialized value $sequence in concatenation (.) or string at + startend-mod3.pl line 48, <FILE1> chunk 1. Use of uninitialized value $sequence in substr at startend-mod3.pl lin +e 49, <FILE1> chunk 1
print "$sequence\n"; my $sub_sequence = substr $sequence, ($startres - 11), ($endres - $ +startres + 11);