Y \ X
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
4830
4829
4828
4827
4826
4825
4824
4823
4822
4821
4820
4819
4818
4817
4816
4815
4814
4813
4812
4811
4810