#include <iostream>
#include <sstream>
#include <algorithm>
#include <cstdio>
#include <string>
#include <vector>
#include <cmath>

//AOJ0075
#define rep(x,to) for(int x=0;x<to;x++)
#define rep2(x,from,to) for(int x=from;x<to;x++)

using namespace std;

int main(void){

int bg,cnt=0;
double tj, sc;
char k;

	while(!cin.eof()){
		cin >> bg >> k >> tj >> k >> sc;
		if(cin.eof()) break;
		if(tj/(sc*sc) >= 25){
			cout << bg << endl;
			cnt++;
		}
	}
	if(cnt==0) cout << "該当なし" << endl;
	return 0;
	
}