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
9780
9779
9778
9777
9776
9775
9774
9773
9772
9771
9770
9769
9768
9767
9766
9765
9764
9763
9762
9761
9760