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
10490
10489
10488
10487
10486
10485
10484
10483
10482
10481
10480
10479
10478
10477
10476
10475
10474
10473
10472
10471
10470