Y \ X
960
961
962
963
964
965
966
967
968
969
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
950
949
948
947
946
945
944
943
942
941
940
939
938
937
936
935
934
933
932
931
930