[SUBMIT ... EXPORTING LIST TO MEMORY] questuion

Hi.

I have a such task:

There is a standart report fbl3n. I need in my report use results of fbl3n.

I tried to use

submit RFITEMGL WITH SELECTION-TABLE gtparam_tab[] EXPORTING LIST TO MEMORY AND RETURN .

then

CALL FUNCTION 'LIST_FROM_MEMORY'

...

CALL FUNCTION 'LIST_TO_ASCI'

...

And i have received a terrible table, where there are all symbols that i can receive from standart fbl3n (I mean different symbols as '----

||||||' and others.

But i need only data in table .

for example

-

-

125

126

127

125,126,127. How can I get it???

May be there is an other method???