#include "bits/stdc++.h"

#define ALL(a) (a).begin(),(a).end()
#define SORT(c) sort((c).begin(),(c).end())
#define DESCSORT(c) sort(c.begin(), c.end(), greater<int>())

using namespace std;

using LL = long long int;
using LD = long double;

using pii = pair<int, int>;
using pll = pair<LL, LL>;
using pdd = pair<double, double>;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vl = vector<LL>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vd = vector<double>;
using vvd = vector<vd>;
using vs = vector<string>;
using vb = vector<bool>;
using vvb = vector<vb>;

const int INF = (1 << 30) - 1;
const LL INF64 = ((LL)1 << 62) - 1;
const double PI = 3.1415926535897932384626433832795;

const int dy[] = { 0, 1, 0, -1 };
const int dx[] = { 1, 0, -1, 0 };

int gcd(int x, int y) { return y ? gcd(y, x % y) : x; }
LL gcd(LL x, LL y) { return y ? gcd(y, x % y) : x; }

int solve(double a, double b) {
	if (a + b > 100.0) {
		return 200;
	}

	if (a == 100.0 || b == 100.0) {
		return 1;
	}

	const double n = 100.0;
	double res = INF;
	for (double i = 1.0; i <= n; i++) {
		for (double j = 1.0; j <= n; j++) {
			double aPercent = round(100.0 * i / (i + j));
			double bPercent = round(100.0 * j / (i + j));
			if (a == aPercent && b == bPercent) {
				return i + j;
			}
		}
	}
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	double a, b;
	cin >> a >> b;

	cout << solve(a, b) << endl;
	return 0;
}