Regarding import and export memory

hi, currently i have encountered this problem when i am using the import and export memory statement. After i export my table name from program1 to program2, i do an import statement at program2 to retrieve the table name but there is a problem in retrieving the name. Below are the codes.

PROGRAM1's codes:

EXPORT IO_TABLE TO MEMORY ID MEM_STR.

SUBMIT PROGRAM2 AND RETURN.

PROGRAM2's codes:

IMPORT IO_TABLE TO MEMORY ID MEM_STR.

P_TABLE = IO_TABLE.

FREE MEMORY ID MEM_STR.

CLEAR MEM_STR.