10          20        30        40        50         60  
UCGGCUUGGCAUCUCCA--|    CU GU           C    GC      -  GCCUGAGC 
                   GGGUC  C  CUCUCCUGGUC UCUC  UGCCCC CU        \
                   CCCGG  G  GAGGGGACCAG AGAG  ACGGGG GG        A
ACCGGGUCCUCGUCUCGAG^    UC UG           U    --      C  UCGUCUGC 
  120       110       100        90        80          70