Y \ X
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
4270
4269
4268
4267
4266
4265
4264
4263
4262
4261
4260
4259
4258
4257
4256
4255
4254
4253
4252
4251
4250