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
4360
4359
4358
4357
4356
4355
4354
4353
4352
4351
4350
4349
4348
4347
4346
4345
4344
4343
4342
4341
4340