为啥子会无限循环，艹

#include<bits/stdc++.h>
using namespace std;

int main() {
    int s1, m1, s2, m2, a, b;
    char c;
    cin >> s1 >> c >> m1 >> s2 >> c >> m2;
    s1 *= s2;
    m1 *= m2;
    b = s1;
    a = m1;
    while(b) {
        b = a % b;
        a = b;
    }
    s1 /= a;
    m1 /= a;
    cout << m1 << ' ' << s1;
    return 0;
}