Y \ X
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
8910
8909
8908
8907
8906
8905
8904
8903
8902
8901
8900
8899
8898
8897
8896
8895
8894
8893
8892
8891
8890