Y \ X
960
961
962
963
964
965
966
967
968
969
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
15400
15399
15398
15397
15396
15395
15394
15393
15392
15391
15390
15389
15388
15387
15386
15385
15384
15383
15382
15381
15380