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
11680
11679
11678
11677
11676
11675
11674
11673
11672
11671
11670
11669
11668
11667
11666
11665
11664
11663
11662
11661
11660