perl script! urgent?

Question

if we know the line number, column number, in a file xxx
how to get the letter in that particular position?
pls give me the instructions,

ex,
----------------------------------------------------------
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
01234567890
-----------------------------------------------------------
here the inputs for the script is row and column number,
if input is (1, 8), then script should return, H

Answer 1

you could slurp the entire file into an array like @lines = <> then call substr on the line you want

Answer 2

I don't write Perl scripts, I write Perl programs.

open the file
use a for loop to read R lines
use substr to grab the C letter