#include <iostream>

using namespace std;

void solve()
{
	int Digit;
	double weight, height;
	while(~scanf("%d,%lf,%lf", &Digit, &weight, &height))
	{
		if(weight / height / height >= 25)
		{
			cout << Digit << endl;
		}
	}
}

int main()
{
	solve();
	return(0);
}