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
15730
15729
15728
15727
15726
15725
15724
15723
15722
15721
15720
15719
15718
15717
15716
15715
15714
15713
15712
15711
15710