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
11670
11669
11668
11667
11666
11665
11664
11663
11662
11661
11660
11659
11658
11657
11656
11655
11654
11653
11652
11651
11650