Y \ X
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
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
5360
5359
5358
5357
5356
5355
5354
5353
5352
5351
5350
5349
5348
5347
5346
5345
5344
5343
5342
5341
5340