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
5490
5489
5488
5487
5486
5485
5484
5483
5482
5481
5480
5479
5478
5477
5476
5475
5474
5473
5472
5471
5470