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
5050
5049
5048
5047
5046
5045
5044
5043
5042
5041
5040
5039
5038
5037
5036
5035
5034
5033
5032
5031
5030