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
6990
6989
6988
6987
6986
6985
6984
6983
6982
6981
6980
6979
6978
6977
6976
6975
6974
6973
6972
6971
6970