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
14670
14669
14668
14667
14666
14665
14664
14663
14662
14661
14660
14659
14658
14657
14656
14655
14654
14653
14652
14651
14650