#include <iostream>
#include <cstdio>

using namespace std;

int main(){
	int s;
	double w, h, BMI;
	
	while (scanf("%d,%lf,%lf", &s, &w, &h) != EOF){
		BMI = w/(h*h);
		if (BMI >= 25){
			cout << s << endl;
			}
	}
	return 0;
}