10          20        30         40        50         
AGUUAUUAUUCAGAAAU--           AAA  A     -|  U         ACGUGA 
                   GGUGUACAGGA   UG CCUAU GAA UGACAGACA      \
                   CUAUAUGUCUU   AC GGAUG CUU ACUGUCUGU      C
GACUAAAACUUCAGCGUCU           GUA  C     U^  U         CUGAAU 
.       110       100        90        80        70        60