10          20        30        40        50        60  
CCCCACACACGUGCCCC--|   UC    A   U       U  A          UCUGUGAG 
                   GGGU  CUCC CGU UGGCACU GC CAUAUUUGCU        U
                   CCCG  GAGG GCG ACCGUGG CG GUGUAAACGA        U
GUGGCGAGAGCGACGACCC^   CU    G   C       -  C          CCCUAGGC 
   120       110       100        90         80        70