C111112111133131121133133313331333133313123221211113313221312131   >>    C11111211113313112113313331333133313331312322121111331322131213   <<    C111112111133131121133133313331333133313123221211113313221312133   >>      C111112111133131121133133313331333133313123221211113313221312132   >>