10          20        30        40        50         
CCCCCUGGGCCCCCCUG--|   C  U    C        A   UA        CUCAGC 
                   GGCC CC CUCC UCCCUGAG CCC  ACUCGUGA      \
                   CCGG GG GAGG GGGGGCUC GGG  UGAGCACU      U
UCCCGCCAGGCGACCGACC^   A  C    U        G   GC        ACGACC 
       110       100        90        80        70        60