public class Gcd {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in = new Scanner(System.in);
int a=in.nextInt();
int b = in.nextInt();
Gcd gc = new Gcd();
gc.gcd(a, b);
}
public void gcd(int a, int b) {
int t;
int initial_a = a;//记录传入的数据a,为了输出
int initial_b = b;//记录传入的数据b,为了输出
while(b!=0) {
t=a%b;
a=b;
b=t;
}
System.out.println(initial_a+"与"+initial_b+"的最大公约数是:"+a);
}
}