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
13460
13459
13458
13457
13456
13455
13454
13453
13452
13451
13450
13449
13448
13447
13446
13445
13444
13443
13442
13441
13440