10          20        30        40        50        60
GGGGUAUCCCCAAACCU--|         UC       C  UAAG        GAGAUCGU 
                   CUGUCCUACG  CGAGUUC AC    CAAGUUUU        U
                   GGUAGGGUGU  GCUCGAG UG    GUUCAAAA        U
AGAAAGCUUAACGCCAUCU^         UU       U  CACA        ACAAAAAU 
120       110       100        90        80        70