Y \ X
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
4870
4869
4868
4867
4866
4865
4864
4863
4862
4861
4860
4859
4858
4857
4856
4855
4854
4853
4852
4851
4850