#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    int a, b, ergebnis, divisor, dividend, i;
    cout <<"Erste Zahl: " <<endl;
    cin >> a;
    cout <<"Zweite Zahl: " <<endl;
    cin >>b;

    while
    if (a<b){
        divisor = a;
        dividend = b;

    }
    else {
        divisor = b;
        dividend = a;
    }


    for ( ; ((b%divisor !=0)||(a%divisor!=0));divisor--){

    }

    cout << "Der gemeinsame Teiler lautet: " <<divisor<<endl;

    return 0;
}