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
5610
5609
5608
5607
5606
5605
5604
5603
5602
5601
5600
5599
5598
5597
5596
5595
5594
5593
5592
5591
5590