Y \ X
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
9560
9559
9558
9557
9556
9555
9554
9553
9552
9551
9550
9549
9548
9547
9546
9545
9544
9543
9542
9541
9540