Problems
The greatest common divisor
The greatest common divisor
$n$ positive integers are given. Find the greatest common divisor of these numbers.
\InputFile
The first line contains one integer $n~(n \le 1000)$. The second line contains $n$ positive integers, each does not exceed $2 \cdot 10^9$.
\OutputFile
Print the greatest common divisor of given numbers.
Input example #1
5 125 80 67835 1000 25
Output example #1
5