#include <iostream>
using namespace std;
#include<string>
int main(){
    string studentname;
    int ca,ch;
   { cin>> studentname;
    cin>>ca;
    cin>>ch;}
    cout<<"\n"<<studentname;
    int a,b;
   a=ca/ch ;
   b=a/100;{
    cout<< "b%"<<b;}
    if (b>=75);
    {
        cout<<"Yes";
    
    else if(b<75);
    
        cout<<"no";
    }
    
    
 
    
}