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#!/usr/bin/env perl
use strict;
use warnings;
use 5.016;
use List::MoreUtils 'uniq';
chomp(my @k1mers = <>);
@k1mers = uniq map { $_, reverse_complement($_) } @k1mers;
my $k = length($k1mers[0]) - 1;
say for map { '(' . substr($_, 0, $k) . ', ' . substr($_, 1, $k) . ')' }
@k1mers;
sub reverse_complement {
my ($str) = @_;
return scalar reverse $str =~ tr/ACGT/TGCA/r;
}
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