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
12680
12679
12678
12677
12676
12675
12674
12673
12672
12671
12670
12669
12668
12667
12666
12665
12664
12663
12662
12661
12660