Y \ X
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
4860
4859
4858
4857
4856
4855
4854
4853
4852
4851
4850
4849
4848
4847
4846
4845
4844
4843
4842
4841
4840