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
14450
14449
14448
14447
14446
14445
14444
14443
14442
14441
14440
14439
14438
14437
14436
14435
14434
14433
14432
14431
14430