Y \ X
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
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
13560
13559
13558
13557
13556
13555
13554
13553
13552
13551
13550
13549
13548
13547
13546
13545
13544
13543
13542
13541
13540