#include <iostream>
#include <cstdio>
#include <string>
#include <vector>
using namespace std;
int main()
{
  double w,l;
  int num;
  string str;
  vector<int> v;
  while(cin >> str){
    double bmi;
    sscanf(str.c_str(),"%d%*c%lf%*c%lf",&num,&w,&l);
    bmi=w/l/l;
    if(bmi>=25.0){
      v.push_back(num);
    }
  }
  for(int buf:v){
    cout << buf << endl;;
  }
}