Corner positions.

Left top:		+0+0
Right top:		-0+0

Left bottom:	+0-0
Right bottom:	-0-0


Page numbers of Desktop size 2x3. Six pages.

 -----------
 |0 0 |1 0 |
 -----------
 |0 1 |1 1 |
 -----------
 |0 2 |1 2 |
 -----------
