10          20        30        40        50          
GCGGAGAGCCCAGGUCG--|    C        UC    U  C            UAGGCG 
                   CCGUG CCUCAGGG  CAGU UU CCAGGAAUCCCU      \
                   GGCAC GGAGUUCU  GUCA AA GGUCCUUAGGGG      C
NNNNNNNNNNNNNNNNNNN^    C        U-    U  A            UUGCAU 
.       110       100        90         80        70