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
12570
12569
12568
12567
12566
12565
12564
12563
12562
12561
12560
12559
12558
12557
12556
12555
12554
12553
12552
12551
12550