10          20        30        40        50
CAAGACCAGAGUUUCUA--|  A   U    UA                GA 
                   AGG GUG CAGU  AACCGUUACCAUUACU  C
                   UCC CGU GUCG  UUGGCAAUGGUAAUGA  U
GAAGACACCACCACUGACA^  C   C    UC                UU 
100        90        80        70        60