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
14710
14709
14708
14707
14706
14705
14704
14703
14702
14701
14700
14699
14698
14697
14696
14695
14694
14693
14692
14691
14690