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

int main(void){
  int id;
  double height, weight;
  while(scanf("%d,%lf,%lf", &id, &weight, &height) != EOF){
    double bmi = weight / (height * height);
    if(bmi >= 25) cout << id << endl;
  }
  return 0;
}