my %unique_hash = (
   >sequence10 => CGCTCCCACCCGCCCCTTCCCCAGCCTGCGGCTTTC,,
   >sequence11 => AAACCGAACCTTCCGGGAATCGGAAGGCGCCGGGCA,
   >sequence12 => CAGGGCCAAGGGGTGGGCAGCATGGAGGTGCAGGG
);