#include<iostream>
#include<iomanip>
#include<algorithm>
#include<bitset>
#include<cctype>
#include<climits>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<deque>
#include<list>
#include<map>
#include<set>
#include<stack>
#include<string>
#include<sstream>
#include<queue>
#include<vector>
using namespace std;

int main() {
	char d;
	int a; double  b, c;
	while (cin >> a >> d >> b >> d >> c) {
		double bmi = b / c / c;
		if (bmi >= 25)cout << a << endl;
	}
	return 0;
}