Y \ X
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
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
5590
5589
5588
5587
5586
5585
5584
5583
5582
5581
5580
5579
5578
5577
5576
5575
5574
5573
5572
5571
5570