10          20        30        40        50        60
AACAAACAAACAAGCAC--|  C         A      G         U  AGUUGCCGU 
                   GGU CUUGCCCUC AGGAGC CACAGUCUA UG         U
                   UCA GGACGGGAG UCCUCG GUGUUAGAU AC         C
AAAAAGGGUCAACUUGCUU^  C         G      A         C  CCCUUCAGU 
120       110       100        90        80        70