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
9540
9539
9538
9537
9536
9535
9534
9533
9532
9531
9530
9529
9528
9527
9526
9525
9524
9523
9522
9521
9520