#include <stdio.h>
#include <iostream>

using namespace std;

int main() {

	double taiju;
	double sincho;
	int bango;
	char d;
	double BMI;

	while (cin >> bango >> d >> taiju >> d >> sincho) {
		BMI = taiju / (sincho * sincho);
		if (BMI >= 25) {
			cout << bango << endl;
		}
	}

	return 0;
}