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while ($seq{$k} =~ /([QGYN]{3,6})/g) { my $seq = $1; ... print "\n$k"; print "$seq begins at position ", (pos($seq{$k})-length($s)) , "\ +n"; }
my $length = length $s; # Pull this out of the loop for eff. my $sequence = $seq{$k}; ... next if $seq =~ /(.)\1\1/; print "\n$k $seq begins at position $pos\n"; }