Y \ X
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
10980
10979
10978
10977
10976
10975
10974
10973
10972
10971
10970
10969
10968
10967
10966
10965
10964
10963
10962
10961
10960