10        20          30        40        50          
CAGGCUCUCGGCGCCGCU    --| C              G  A    CC    CGGGCU 
                  GUCC  CC GGCCCAGGUUCUGU AU CACU  GACU      \
                  CAGG  GG CCGGGUUCAAGACA UA GUGA  CUGA      C
CGGGCGACCCACGUCUUC    AA^ C              G  C    --    CGAGGU 
       110       100        90        80          70