#include<iostream>
#include<sstream>
#include<fstream>
#include<vector>
#include<list>
#include<stack>
#include<queue>
#include<deque>
#include<set>
#include<map>
#include<algorithm>
#include<string>
#include<utility>
#include<cmath>
#include<cstdlib>
#include<cstdio>
#include<cstring>
#include<cctype>
using namespace std;


int main(){
	int n;
	double a,b;
	map<int,double> data;
	
	while(scanf("%d,%lf,%lf",&n,&a,&b) != EOF){
		data[n] = a/pow(b,2);
	}
	
	for(map<int,double>::iterator it = data.begin();it!=data.end();++it){
		if( it->second > 25.0){
			printf("%d\n",it->first);
		}
	}

}