#include <iostream>
#include <cfloat>
#include <cmath>
using namespace std;
 
 
//0075
int main(){
	int num;
    double w, h;
    char ch;

	while(cin >> num >> ch >> w >> ch >> h){
		double bmi = w/(h*h);
		if(bmi >= 25.0 - DBL_EPSILON){
			cout << num << endl;
		}
	}
	return 0; 
}