Y \ X
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
13410
13409
13408
13407
13406
13405
13404
13403
13402
13401
13400
13399
13398
13397
13396
13395
13394
13393
13392
13391
13390