print the content fo internal table as coloumn wise

hi

i want to print the rows of the internal table columnwise in ALV before printing it.

like eg.

itab1:

a 1 5

b 2 6

c 3 7

itab2:

a b c

1 2 3

5 6 7

i tried to do the same with fields symbol but when i am implementing in the main program it is giving a dump

please help

Regards

Swarnali