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
12880
12879
12878
12877
12876
12875
12874
12873
12872
12871
12870
12869
12868
12867
12866
12865
12864
12863
12862
12861
12860