10           20        30        40        50         
GCGACGGCAACGGUGAC---|   U     CC           C      G  UCCGCCCC 
                    AGUC CCCCC  CCAUAAAGUAG GAGCAC AC        \
                    UCGG GGGGG  GGUAUUUCAUC UUUGUG UG        C
GGGCGCAGAGGCAACGAGGG^   U     A-           C      A  UGCCCGCG 
       110       100        90         80        70        60