#include <bits/stdc++.h>
using namespace std;
#define rep(i, a) for (int i = 0; i < (a); i++)
#define rep2(i, a, b) for (int i = (a); i < (b); i++)
#define repr(i, a) for (int i = (a) - 1; i >= 0; i--)
#define repr2(i, a, b) for (int i = (b) - 1; i >= (a); i--)
template<class T1, class T2> bool chmin(T1 &a, T2 b) { return b < a && (a = b, true); }
template<class T1, class T2> bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }
typedef long long ll;

int main() {
	int A, B;
	cin >> A >> B;

	int ans = 1e9;

	rep(a, 1000) rep(b, 1000) if (a + b > 0) {
		if (round(100.0 * a / (a + b)) == A && round(100.0 * b / (a + b)) == B) {
			chmin(ans, a + b);
		}
	}

	cout << ans << endl;
	return 0;
}