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
13000
12999
12998
12997
12996
12995
12994
12993
12992
12991
12990
12989
12988
12987
12986
12985
12984
12983
12982
12981
12980