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
5640
5639
5638
5637
5636
5635
5634
5633
5632
5631
5630
5629
5628
5627
5626
5625
5624
5623
5622
5621
5620