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
4910
4909
4908
4907
4906
4905
4904
4903
4902
4901
4900
4899
4898
4897
4896
4895
4894
4893
4892
4891
4890