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
11350
11349
11348
11347
11346
11345
11344
11343
11342
11341
11340
11339
11338
11337
11336
11335
11334
11333
11332
11331
11330