## Problem Description

In this problem, you will be concerned with integers with very large numbers of digits. You
must write code which will repeatedly accept (until end of file) two lines each containing an
unsigned integer, and output the product of the two input unsigned integers. The output
must not contain any leading zeros.

You can assume that each integer will contain at most 80 digits. The input ends with an
end of file.

## Sample Input

0342
1298
12
3

## Sample Output

443916
36

## Source

MIT Programming Contest 2003 PRA