C111112111133131121133133313331333133313331323221211113313122311   >>    C11111211113313112113313331333133313331333132322121111331312231   <<    C111112111133131121133133313331333133313331323221211113313122313   >>      C111112111133131121133133313331333133313331323221211113313122312   >>