Y \ X
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
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
13050
13049
13048
13047
13046
13045
13044
13043
13042
13041
13040
13039
13038
13037
13036
13035
13034
13033
13032
13031
13030