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
12980
12979
12978
12977
12976
12975
12974
12973
12972
12971
12970
12969
12968
12967
12966
12965
12964
12963
12962
12961
12960