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
11060
11059
11058
11057
11056
11055
11054
11053
11052
11051
11050
11049
11048
11047
11046
11045
11044
11043
11042
11041
11040