#define _USE_MATH_DEFINES
#include  <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
#include<math.h>
#include<iomanip>
#include<stdio.h>
#include <stdlib.h>
#include<stdio.h>
#include <queue>
#include<map>
#include <fstream>
#include <sstream>
#include<set>
#include<stack>
#include<time.h>
#include <sys/types.h>
#include <tuple>
#include <numeric>
#include <iterator>

typedef long long int ll;
//#include<bits/stdc++.h>


using namespace std;

ll gcd(ll a, ll b) {
    if (a < b)swap(a, b);
    if (b == 0)return a;
    return gcd(b, a % b);
}
int lcm(int a, int b) {
    return a * b / gcd(a, b);
}


int main()
{

    int Q;
    Q = 1;
    //cin >> Q;


    while (Q--) {
        int a, b;
        cin >> a >> b;
        int c = a + b;
        int ans = 200;
        for (int i = 0; i <= 10000; i++) {
            for (int j = 0; j <= 10000; j++) {
                double x, y,z;
                x = i, y = j; z = i + j;
                double s = x / z; s *= 100;
                double t = y / z; t *= 100;
                s = round(s); t = round(t);
                int A = s; int B = t;
                if (A == a && B == b) {
                    
                    ans = min(ans, i + j);
                }
                //if (i + j == 200)cout << A << " " << B << endl;
            }
        }
        cout << ans;
    }
    return 0;
}