10          20        30        40        50        60
GAUCCCCUCUGCAUUCG--|      C  C         G           U  UCCAUUG 
                   GGGCCAG GC UCGGCUGGC UACGUUGGCGU GC       A
                   CCCGGUC CG AGUCGACCG GUGCAGCCGCA CG       A
AGUUGCGCACUCUACGGCU^      U  U         A           U  ACGACCG 
120       110       100        90        80        70