Y \ X
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4910
4909
4908
4907
4906
4905
4904
4903
4902
4901
4900
4899
4898
4897
4896
4895
4894
4893
4892
4891
4890