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
6780
6779
6778
6777
6776
6775
6774
6773
6772
6771
6770
6769
6768
6767
6766
6765
6764
6763
6762
6761
6760