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
8910
8909
8908
8907
8906
8905
8904
8903
8902
8901
8900
8899
8898
8897
8896
8895
8894
8893
8892
8891
8890