Y \ X
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
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
4960
4959
4958
4957
4956
4955
4954
4953
4952
4951
4950
4949
4948
4947
4946
4945
4944
4943
4942
4941
4940