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
9610
9609
9608
9607
9606
9605
9604
9603
9602
9601
9600
9599
9598
9597
9596
9595
9594
9593
9592
9591
9590