#include<iostream>
#include<stdio.h>
#include<vector>
using namespace std;
int main()
{
	int s[50] = {};
	double w[50] = {};
	double h[50] = {};
	int i = 0;
	vector <int> sb(50, 0);
	while (scanf_s("%d,%f,%f", &s[i], &w[i], &h[i]) != EOF) {
		if ((w[i] / (h[i] * h[i])) >= 25) {
			sb.push_back(s[i]);
		}
		i++;
	}
	int j = 0;
	while (sb[j] == 0) {
		cout << sb[j] << endl;
		j++;
	}

	return 0;
}