#include <bits/stdc++.h>
using namespace std;

int main()
{
	int a, b; scanf("%d%d", &a, &b);
	int n = 100, m = 100;
	for (int i = 1; i < 101; i++)
	{
		if (i > n + m)
			break;
		for (int j = 1; j < 101; j++)
		{
			if (i + j > n + m)
				break;
			if (round(100.0 * i / (i + j)) == a && round(100.0 * j / (i + j)) == b)
			{
				n = i;
				m = j;
				break;
			}
		}
	}
	cout << n + m << endl;
	return 0;
}