C111112111133131121133133313331333133313331323221211113313232121   >>    C11111211113313112113313331333133313331333132322121111331323212   <<    C111112111133131121133133313331333133313331323221211113313232123   >>      C111112111133131121133133313331333133313331323221211113313232122   >>