C313212111133131211331333133313331331121111331333133313331333132332133313223311   >>    C31321211113313121133133313331333133112111133133313331333133313233213331322331   <<    C313212111133131211331333133313331331121111331333133313331333132332133313223313   >>      C313212111133131211331333133313331331121111331333133313331333132332133313223312   >>