10            20        30        40        50         
UGUUCGGAAAUCAAGGC----|    AC   C  C        A   GA       UUAAUG 
                     GGACC  GCU UU GUGUUCAC GCG  CCUUGAU      \
                     CCUGG  CGA AA CGUAAGUG CGC  GGAAUUA      U
CUCUAGGGGGCUGCACAAAAG^    --   A  C        G   AC       ACAUCA 
       110       100          90        80        70        60