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
5910
5909
5908
5907
5906
5905
5904
5903
5902
5901
5900
5899
5898
5897
5896
5895
5894
5893
5892
5891
5890