Y \ X
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
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
5300
5299
5298
5297
5296
5295
5294
5293
5292
5291
5290
5289
5288
5287
5286
5285
5284
5283
5282
5281
5280