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
2940
2939
2938
2937
2936
2935
2934
2933
2932
2931
2930
2929
2928
2927
2926
2925
2924
2923
2922
2921
2920