Y \ X
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
9760
9759
9758
9757
9756
9755
9754
9753
9752
9751
9750
9749
9748
9747
9746
9745
9744
9743
9742
9741
9740