10          20        30        40         50          
AUACGCAAAUGUUUUUA--       U     G         -|    U       UAAAAC 
                   ACUCAUG UUCUA UCGUCAGAG UGGUU UGAUAUG      \
                   UGGGUAC AAGAU AGUAGUUUC ACCGA ACUAUAC      U
AGUUCCGUCUUCGAUGUAA       C     G         G^    C       CUCUCC 
120       110       100        90        80        70