C111112111133131121133133313331333133313123221211111333132212231   >>    C11111211113313112113313331333133313331312322121111133313221223   <<    C111112111133131121133133313331333133313123221211111333132212233   >>      C111112111133131121133133313331333133313123221211111333132212232   >>