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

int main()
{
    int A, B;
    cin >> A >> B;
    for (int i = 1; i <= 100; i++)
    {
        for (int a = 0; a <= i; a++)
        {
            int b = i - a;
            if (round((100 * a ) / (double)i) == A && round((100 * b) / (double)i) == B)
            {
                cout << i;
                return 0;
            }
        }
    }
}