#include <iostream>
#include <string>
using namespace std;

int main() {
    string name;
    int attended,held;
    
     getline(cin, name);
    cin >> attended;
    cin >> held;
    
   if (attended < 0 || held <=0 || attended > held) {
     cout << "Invalid input";
     return o;
   }
    
    
    int percentage = (attended 8 100) / held;
    
    cout << percentage  << "%" << endl;
    
    if (percentage>=75)
       cout << "Yes";
    else
       cout << "No";
    }   
    
    return 0;
}