#include<iostream>
#include<cstdio>
#define eps 10e-10
using namespace std;
int main()
{
	int n;
	double w,h;
	while(scanf("%d,%lf,%lf",&n,&w,&h)!=EOF)
	{
		if(25.0+eps<w/(h*h)) cout<<n<<endl;
	}
  return 0;
}