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
9900
9899
9898
9897
9896
9895
9894
9893
9892
9891
9890
9889
9888
9887
9886
9885
9884
9883
9882
9881
9880