Y \ X
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
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
9500
9499
9498
9497
9496
9495
9494
9493
9492
9491
9490
9489
9488
9487
9486
9485
9484
9483
9482
9481
9480