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
7500
7499
7498
7497
7496
7495
7494
7493
7492
7491
7490
7489
7488
7487
7486
7485
7484
7483
7482
7481
7480