10        20            30        40        50         
GAAUUCGGAACGAUCCAUGG----|     GU   C           C        UUUCGU 
                        GUUUCU  UGU CUUCAUUCCAC GGAGUCUG      \
                        CGGAGA  ACA GAAGUGAGGUG CUUUAGAC      A
AGCACCGCCAUCUAAGUUGAGGUA^     --   C           A        UAAUCC 
       110       100        90          80        70        60