Get last letter of a string....

Hi guys.

Have a problem with ABAP in SAP.

I need to get the last character of the string, like this...

'AAAAAAAA BBBB 1 QQQQQQQQ 2'.

i need to take the last letter (2) to do more things b4.

I'm thinking to rotate the string and take the first letter, but i think will exist a FM that do my requirement.

See you.

Thanks: Miguel