#include<iostream>

using namespace std;

int main()
{
	int n;
	while(cin >> n, !cin.eof())
	{
		double hg, wg;
		char c;
		cin >> c;
		cin >> wg;
		cin >> c;
		cin >> hg;
		
		if( wg / (hg*hg) >= 25.0 )
			cout << n << endl;
	}
	
	return 0;
}