iterate each line with random range

[james27]

i have two text file

one is a.txt and another is b.txt

content of a.txt is

a
b
c
d

content of b.txt is

1
2
3
4
5
6
7
8
9

i want to process each a.txt line to random range of b.txt lines.

for instance.

    for each aa as String in a.txt
    
		for bb as integer = 0 to b.txt.count - 1
     

		end for
    
    end for

so what i want to get result is like this one

each a.txt line to random range of b.txt lines


a12
b3456
c789