C111112111133131121133133313331333133313123221211113313232213133311   >>    C11111211113313112113313331333133313331312322121111331323221313331   <<    C111112111133131121133133313331333133313123221211113313232213133313   >>      C111112111133131121133133313331333133313123221211113313232213133312   >>