Y \ X
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
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
9960
9959
9958
9957
9956
9955
9954
9953
9952
9951
9950
9949
9948
9947
9946
9945
9944
9943
9942
9941
9940