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
2680
2679
2678
2677
2676
2675
2674
2673
2672
2671
2670
2669
2668
2667
2666
2665
2664
2663
2662
2661
2660