C313212111133131211331333133313331311331333133313232233131133231   >>    C31321211113313121133133313331333131133133313331323223313113323   <<    C313212111133131211331333133313331311331333133313232233131133233   >>      C313212111133131211331333133313331311331333133313232233131133232   >>