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

int main(){
  
  int num;
  double w,h;
  double bmi;

  while(scanf("%d,%lf,%lf",&num,&w,&h) != EOF){
    bmi = w/(h*h);
    if(bmi>=25) printf("%d\n",num);
  }

  return 0;

}