// editor1
#include<iostream>
#include <string>
using namespace std;
int main(){
    sring name;
    int attended, held;
    cin >> name;
    cin >> attended;
    cin >> held;
    if (attended < 0 ||held <= 0 || attended > held) {
        cout << "Invalid input";
    } else {
        int percentage = (attended * 100) /held;
        cout << percentage << "%" << endl;
        if (percentage >= 75)
            cout << "Yes";
        else
        cout << "No";
    }
    return 0;
}