#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i = (a); i < (b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) for(int i = (n) - 1; (i) >= 0; --i)
#define SZ(n) (int)(n).size()
#define ALL(n) (n).begin(), (n).end()
#define MOD LL(1e9 + 7)
#define INF 1000000
using namespace std;
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PI;

double f(int x, int y) {
	return (double)x * 100 / (double)(x + y);
}

int d(double x) {
	return x >= (int)x + 0.5 ? ceil(x) : floor(x);
}

int main() {
	int a, b;
	cin >> a >> b;
	REP(i, 201) {
		REP(j, 201) {
			int x = d(f(i, j));
			int y = d(f(j, i));
			if (a == x && b == y) {
				cout << i + j << endl;
				return 0;
			}
		}
	}
	return 0;
}