Y \ X
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
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
2990
2989
2988
2987
2986
2985
2984
2983
2982
2981
2980
2979
2978
2977
2976
2975
2974
2973
2972
2971
2970