C111112111133131121133133313331333133313123221211113313232323231   >>    C11111211113313112113313331333133313331312322121111331323232323   <<    C111112111133131121133133313331333133313123221211113313232323233   >>      C111112111133131121133133313331333133313123221211113313232323232   >>