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
13940
13939
13938
13937
13936
13935
13934
13933
13932
13931
13930
13929
13928
13927
13926
13925
13924
13923
13922
13921
13920