C1111121111331311211331333133313113313331311221123231333132233132311231   >>    C111112111133131121133133313331311331333131122112323133313223313231123   <<    C1111121111331311211331333133313113313331311221123231333132233132311233   >>      C1111121111331311211331333133313113313331311221123231333132233132311232   >>