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
9400
9399
9398
9397
9396
9395
9394
9393
9392
9391
9390
9389
9388
9387
9386
9385
9384
9383
9382
9381
9380