Y \ X
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
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
4110
4109
4108
4107
4106
4105
4104
4103
4102
4101
4100
4099
4098
4097
4096
4095
4094
4093
4092
4091
4090