Y \ X
950
951
952
953
954
955
956
957
958
959
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
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20