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
4200
4199
4198
4197
4196
4195
4194
4193
4192
4191
4190
4189
4188
4187
4186
4185
4184
4183
4182
4181
4180