#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define RREP(i,s,e) for (i = e-1; i >= s; i--)
#define rrep(i,n) RREP(i,0,n)
#define REP(i,s,e) for (i = s; i < e; i++)
#define rep(i,n) REP(i,0,n)

int main() {
    int a, b;
    double x, y;
    cin >> a >> b;
    REP (x,1,300) rep(y,x+1) {
        if (static_cast<int>(x/(x+y)*100+0.5) == max(a,b) && static_cast<int>(y/(x+y)*100+0.5) == min(a,b)) {
            cout << x+y << endl;
            return 0;
        }
    }
    return 0;
}