Replacing sapces with 0 in character variables.

Hi,
Can anyone suggest a method to replace zeros instead of characters at left side.
I have a component of internal table which accepts character data --> size 10, however before it gets uploaded I want it to look like '0000000012' instead of 12.
I used replace and replace all occurances, I also tried using first SHIFT and later REPLACE but no use.
Can anyone help ?
Appropirate rewards for good answers.
Thank you,
Dipesh Jhala.

Hi,
use code as below :
data : a(10), b(10).
a = '12'.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
    input         = a
IMPORTING
   OUTPUT        = b
write :/ a.
write :/ b.
Reward, if helpful,
Sandeep Kaushik
Message was edited by:
        Sandeep Kaushik

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