#include <bits/stdc++.h>

using namespace std;

int main() {
    int A, B;
    cin >> A >> B;
    int ans = 1e9;
    for (int a = 1; a <= 100; a++) {
        for (int b = 1; b <= 100; b++) {
            if (A == (int) round(1. * 100 * a / (a + b)) && B == (int) round(1. * 100 * b / (a + b))) {
                ans = min(ans, a + b);
            }
        }
    }
    cout <<  ans << endl;
    return 0;
}