Y \ X
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
7460
7459
7458
7457
7456
7455
7454
7453
7452
7451
7450
7449
7448
7447
7446
7445
7444
7443
7442
7441
7440