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
2390
2389
2388
2387
2386
2385
2384
2383
2382
2381
2380
2379
2378
2377
2376
2375
2374
2373
2372
2371
2370