C313212111113331323312111133133313331333133313331333133313331331121111122331211   >>    C31321211111333132331211113313331333133313331333133313331333133112111112233121   <<    C313212111113331323312111133133313331333133313331333133313331331121111122331213   >>      C313212111113331323312111133133313331333133313331333133313331331121111122331212   >>