C111112111133131121133133313331333133313123221211111333133313231213331323233111   >>    C11111211113313112113313331333133313331312322121111133313331323121333132323311   <<    C111112111133131121133133313331333133313123221211111333133313231213331323233113   >>      C111112111133131121133133313331333133313123221211111333133313231213331323233112   >>