Y \ X
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
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
7260
7259
7258
7257
7256
7255
7254
7253
7252
7251
7250
7249
7248
7247
7246
7245
7244
7243
7242
7241
7240