#include <iostream>
#include <vector>
#include <limits>
#include <algorithm>
#include <map>
#include <math.h>
using namespace std;
using ll = long long;
const int INT_INF = numeric_limits<int>::max();
const long long LL_INF = numeric_limits<long long>::max();

int main() {
  double A, B;
  cin >> A >> B;
  double C = 1 - B / A;
  cout << C * 100 << endl;
  return 0;
}
#include <iostream>

using namespace std;

int main() {

  long s,p;
  cin>>s>>p;

  for(int i=1; i<=1000000; i++){
    if(p%i==0&&i+p/i==s){
      cout<<"Yes\n";
      return 0;
    }
  }

  cout<<"No\n";
}