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
5390
5389
5388
5387
5386
5385
5384
5383
5382
5381
5380
5379
5378
5377
5376
5375
5374
5373
5372
5371
5370