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
11770
11769
11768
11767
11766
11765
11764
11763
11762
11761
11760
11759
11758
11757
11756
11755
11754
11753
11752
11751
11750