C31232233133313221211113313331333133313331212111112111133112222332311321   >>    C3123223313331322121111331333133313331333121211111211113311222233231132   <<    C31232233133313221211113313331333133313331212111112111133112222332311323   >>      C31232233133313221211113313331333133313331212111112111133112222332311322   >>