#include<iostream>
using namespace std;

int main() {
	double bmi;
	int s;
	double w, h;
	while (scanf("%d,%lf,%lf", &s, &w, &h) + 1) {
		bmi = w / (h*h);
		if (bmi >= 25) {
			cout << s<<endl;
		}
	}
	return 0;
}