Report based on first or starting character

Hi,

I have materials starting with M, P and G. (Ex: M0001, G29043, P76888). I need to generate reports for only those materials that start with M and those materials that do not start with M. Can this be accomplised without adding any additional InfoObjects.

1. Can this be done using user exits or any other way to create two different reports.

2. Can a single report be generated with selection option to M or Non M materials. Again w/o adding additional InfoObject.

Any help would be greatly appreciated.

Thanks,

Ace