Y \ X
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
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
7910
7909
7908
7907
7906
7905
7904
7903
7902
7901
7900
7899
7898
7897
7896
7895
7894
7893
7892
7891
7890