C313212111133131211331333133313331311331333133313113313331322333121211   >>    C31321211113313121133133313331333131133133313331311331333132233312121   <<    C313212111133131211331333133313331311331333133313113313331322333121213   >>      C313212111133131211331333133313331311331333133313113313331322333121212   >>