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
11810
11809
11808
11807
11806
11805
11804
11803
11802
11801
11800
11799
11798
11797
11796
11795
11794
11793
11792
11791
11790