C31232233133313221211113313331333133313331212111112111113331311221221   >>    C3123223313331322121111331333133313331333121211111211111333131122122   <<    C31232233133313221211113313331333133313331212111112111113331311221223   >>      C31232233133313221211113313331333133313331212111112111113331311221222   >>