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
3310
3309
3308
3307
3306
3305
3304
3303
3302
3301
3300
3299
3298
3297
3296
3295
3294
3293
3292
3291
3290