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
9390
9389
9388
9387
9386
9385
9384
9383
9382
9381
9380
9379
9378
9377
9376
9375
9374
9373
9372
9371
9370