#include <iostream>
#include <windows.h>
int a,b,r;
int main()
{
start:
std::cout << "A ="; std::cin >> a;
std::cout << "B ="; std::cin >> b;
r = a % b;
while(r != 0)
{
a = b;
b = r;
r = a % b;
}
std::cout <<"CMMDC: "<< b << std::endl;
std::cout <<"Goto start in 3 secunde: "
Sleep(3000);

goto start;
}