Y \ X
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
2860
2859
2858
2857
2856
2855
2854
2853
2852
2851
2850
2849
2848
2847
2846
2845
2844
2843
2842
2841
2840