Y \ X
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
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
2920
2919
2918
2917
2916
2915
2914
2913
2912
2911
2910
2909
2908
2907
2906
2905
2904
2903
2902
2901
2900