#include <iostream>
using namespace std;
int gcd(int a, int b){
if( b == 0){
return a;
}
else{
return gcd(b, a % b);
}
}
int main(){
int a = 98, b = 56;
cout<<"GCD of "<<a<<" and "<<b<<" is "<<gcd(a, b);
return 0;
}
//GCD of 98 and 56 is 14