Y \ X
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
5570
5569
5568
5567
5566
5565
5564
5563
5562
5561
5560
5559
5558
5557
5556
5555
5554
5553
5552
5551
5550