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

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