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

int main(){
	int n;
	double w, h, bmi;
	while(scanf("%d,%lf,%lf", &n, &w, &h) != EOF){
		bmi = w / (h * h);
		if(bmi >= 25){
			cout << n << endl;
		}
	}
	return 0;
}