C111112111133131121133133313331333133313331312111133133313232233132332221   >>    C11111211113313112113313331333133313331333131211113313331323223313233222   <<    C111112111133131121133133313331333133313331312111133133313232233132332223   >>      C111112111133131121133133313331333133313331312111133133313232233132332222   >>