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
9620
9619
9618
9617
9616
9615
9614
9613
9612
9611
9610
9609
9608
9607
9606
9605
9604
9603
9602
9601
9600