Y \ X
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
4160
4159
4158
4157
4156
4155
4154
4153
4152
4151
4150
4149
4148
4147
4146
4145
4144
4143
4142
4141
4140