文件目录

#include <iostream>
#include <cmath>
using namespace std;
int main()
{
    int m, n;
    cin >> m >> n;
    int t = 1;
    for (int i = 1; i <= min(m, n); i++)
    {
        if (m % i == 0 && n % i == 0)
        {
            t = i;
        }
    }
    cout << t;
    return 0;
}