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

int main(){
	int num;
	double w, h, bmi;
	vector<int> seito;
	while(scanf("%d,%lf,%lf", &num, &w, &h) != EOF){
		bmi = (double)w/h/h;
		if(25.0<=bmi){
			seito.push_back(num);
		}
	}
	for(int i=0;i<seito.size();i++){
		cout<<seito[i]<<endl;
	}
	return 0;
}