#include <cstdio>
#include <vector>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <sstream>
#include <cmath>
#include <climits>
#include <set>
#include <iostream>
#include <map>
#include <functional>
#include <cstdlib>
#include <numeric>
#include <queue>

using namespace std;

#define reep(i,f,n) for(int i=f; i<int(n); ++i)
#define rep(i,n) reep(i,0,n)

typedef vector<int> vi;
typedef pair<int, int> pii;

int main()
{
	int n;
	double w, h;
	while(scanf("%d,%lf,%lf", &n, &w, &h) != EOF){
		if(w/h/h >= 25.0)
			printf("%d\n", n);
	}

	return 0;
}