C111112111133131121133133313331333133313331323133313331333133313113121133223231   >>    C11111211113313112113313331333133313331333132313331333133313331311312113322323   <<    C111112111133131121133133313331333133313331323133313331333133313113121133223233   >>      C111112111133131121133133313331333133313331323133313331333133313113121133223232   >>