Y \ X
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
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
2790
2789
2788
2787
2786
2785
2784
2783
2782
2781
2780
2779
2778
2777
2776
2775
2774
2773
2772
2771
2770