Y \ X
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
7850
7849
7848
7847
7846
7845
7844
7843
7842
7841
7840
7839
7838
7837
7836
7835
7834
7833
7832
7831
7830