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
5300
5299
5298
5297
5296
5295
5294
5293
5292
5291
5290
5289
5288
5287
5286
5285
5284
5283
5282
5281
5280