Y \ X
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
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
14260
14259
14258
14257
14256
14255
14254
14253
14252
14251
14250
14249
14248
14247
14246
14245
14244
14243
14242
14241
14240