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
9160
9159
9158
9157
9156
9155
9154
9153
9152
9151
9150
9149
9148
9147
9146
9145
9144
9143
9142
9141
9140