Y \ X
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
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
12840
12839
12838
12837
12836
12835
12834
12833
12832
12831
12830
12829
12828
12827
12826
12825
12824
12823
12822
12821
12820