Y \ X
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
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
5370
5369
5368
5367
5366
5365
5364
5363
5362
5361
5360
5359
5358
5357
5356
5355
5354
5353
5352
5351
5350