C111112111133131121133133313331333133313331332133313331333133313232233131111   >>    C11111211113313112113313331333133313331333133213331333133313331323223313111   <<    C111112111133131121133133313331333133313331332133313331333133313232233131113   >>      C111112111133131121133133313331333133313331332133313331333133313232233131112   >>