Y \ X
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
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
5580
5579
5578
5577
5576
5575
5574
5573
5572
5571
5570
5569
5568
5567
5566
5565
5564
5563
5562
5561
5560