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

int main()
{
	int gakuseki;
	double sin, tai;

	while (scanf("%d, %lf, %lf", &gakuseki, &tai, &sin) != EOF){
		if (tai / (sin * sin) >= 25) cout << gakuseki << endl;
	}
	
	return (0);
}