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
11590
11589
11588
11587
11586
11585
11584
11583
11582
11581
11580
11579
11578
11577
11576
11575
11574
11573
11572
11571
11570