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
9660
9659
9658
9657
9656
9655
9654
9653
9652
9651
9650
9649
9648
9647
9646
9645
9644
9643
9642
9641
9640