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
9560
9559
9558
9557
9556
9555
9554
9553
9552
9551
9550
9549
9548
9547
9546
9545
9544
9543
9542
9541
9540