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
14470
14469
14468
14467
14466
14465
14464
14463
14462
14461
14460
14459
14458
14457
14456
14455
14454
14453
14452
14451
14450