Y \ X
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
2470
2469
2468
2467
2466
2465
2464
2463
2462
2461
2460
2459
2458
2457
2456
2455
2454
2453
2452
2451
2450