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
10580
10579
10578
10577
10576
10575
10574
10573
10572
10571
10570
10569
10568
10567
10566
10565
10564
10563
10562
10561
10560