#include<iostream>
#include<cstdio>
using namespace std;
int main(){
    int gaku;
    double w,h;
	while(scanf("%d,%lf,%lf",&gaku,&w,&h) != EOF){
	    int bmi = w / (h * h);
        bmi >= 25 ? cout << gaku << endl:cout << "";
	}
	return 0;
}