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
2860
2859
2858
2857
2856
2855
2854
2853
2852
2851
2850
2849
2848
2847
2846
2845
2844
2843
2842
2841
2840