Y \ X
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
9410
9409
9408
9407
9406
9405
9404
9403
9402
9401
9400
9399
9398
9397
9396
9395
9394
9393
9392
9391
9390