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
5400
5399
5398
5397
5396
5395
5394
5393
5392
5391
5390
5389
5388
5387
5386
5385
5384
5383
5382
5381
5380