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
15360
15359
15358
15357
15356
15355
15354
15353
15352
15351
15350
15349
15348
15347
15346
15345
15344
15343
15342
15341
15340