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
6870
6869
6868
6867
6866
6865
6864
6863
6862
6861
6860
6859
6858
6857
6856
6855
6854
6853
6852
6851
6850