Y \ X
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
3970
3969
3968
3967
3966
3965
3964
3963
3962
3961
3960
3959
3958
3957
3956
3955
3954
3953
3952
3951
3950