#include <iostream>
#include <cstring>
#include <vector>
#include <cstdlib>
using namespace std;

int main() {
    long long int S,P;cin>>S>>P;
    for (long long int i = 1; i <= 1000000; i++)
    {
        if (i*(S-i)==P)
        {
            cout << "Yes";
            break;
        }
        if(i==1000000){
            cout << "No";
        }
    }
    
    
}
#include <bits/stdc++.h>
using namespace std;

signed main(){
	int A, B;
	scanf("%d%d", &A, &B);
	printf("%lf\n", 100.0 * (A - B) / A);
	return 0;
}