C31232233133313221211113313331311331333133313311232313132311211321   >>    C3123223313331322121111331333131133133313331331123231313231121132   <<    C31232233133313221211113313331311331333133313311232313132311211323   >>      C31232233133313221211113313331311331333133313311232313132311211322   >>