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
14540
14539
14538
14537
14536
14535
14534
14533
14532
14531
14530
14529
14528
14527
14526
14525
14524
14523
14522
14521
14520