Y \ X
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
15010
15009
15008
15007
15006
15005
15004
15003
15002
15001
15000
14999
14998
14997
14996
14995
14994
14993
14992
14991
14990