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
6230
6229
6228
6227
6226
6225
6224
6223
6222
6221
6220
6219
6218
6217
6216
6215
6214
6213
6212
6211
6210