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
6100
6099
6098
6097
6096
6095
6094
6093
6092
6091
6090
6089
6088
6087
6086
6085
6084
6083
6082
6081
6080