I am making a pagination plan for a book. I need to split total number of pages into ranges. What formula should i use? Hope to hear from you soon.

Example:
Column A is total number of page
Column B is book page number
Column C is actual page

Row 1:
Total number of page is 9
Book page number should be A1-A9
Actual page number should be 1-9

Row 2:
Total number of page is 2
Book page number should be A10-A11
Actual page number should be 10-11

etc...