Hi Ramu K,
Use this FM 'FIEB_EXTRACT_NUMBERS' ,
This FM will split the Numbers and it will give you as output, from the output parameter u can use the command REVERSE( Output ).
use the above logic to get strings and concatenate the FM output numbers and special characters into a variable
if u need Characters to split from a string , use below FM
FIEB_EXTRACT_CHARACTERS
Sure it will works.
Thanks,
Vijay