Y \ X
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
2880
2879
2878
2877
2876
2875
2874
2873
2872
2871
2870
2869
2868
2867
2866
2865
2864
2863
2862
2861
2860