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
7610
7609
7608
7607
7606
7605
7604
7603
7602
7601
7600
7599
7598
7597
7596
7595
7594
7593
7592
7591
7590