Y \ X
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
10640
10639
10638
10637
10636
10635
10634
10633
10632
10631
10630
10629
10628
10627
10626
10625
10624
10623
10622
10621
10620