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
15150
15149
15148
15147
15146
15145
15144
15143
15142
15141
15140
15139
15138
15137
15136
15135
15134
15133
15132
15131
15130