C3123121111113313121111331333133313311211113313331333132233132311233231   >>    C312312111111331312111133133313331331121111331333133313223313231123323   <<    C3123121111113313121111331333133313311211113313331333132233132311233233   >>      C3123121111113313121111331333133313311211113313331333132233132311233232   >>