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
6670
6669
6668
6667
6666
6665
6664
6663
6662
6661
6660
6659
6658
6657
6656
6655
6654
6653
6652
6651
6650