C111112111133131121133133313331333133313331323133313331333133313113121211111   >>    C11111211113313112113313331333133313331333132313331333133313331311312121111   <<    C111112111133131121133133313331333133313331323133313331333133313113121211113   >>      C111112111133131121133133313331333133313331323133313331333133313113121211112   >>