C111112111133131121133133313331333133313123221211111333133313311233133313232231   >>    C11111211113313112113313331333133313331312322121111133313331331123313331323223   <<    C111112111133131121133133313331333133313123221211111333133313311233133313232233   >>      C111112111133131121133133313331333133313123221211111333133313311233133313232232   >>