C3123121111113313121111331333133313331333223313331333133322231322321   >>    C312312111111331312111133133313331333133322331333133313332223132232   <<    C3123121111113313121111331333133313331333223313331333133322231322323   >>      C3123121111113313121111331333133313331333223313331333133322231322322   >>