#include<iostream>
#include<string>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int main(void){

	int n;
	double t,w;
	int flg=0;
	while(scanf("%d,%lf,%lf",&n,&w,&t)!=EOF){
	if(w/t/t>=25.0)flg=1,cout<<n<<endl;
	}
	if(flg==0)cout<<"該当なし"<<endl;


	return 0;
}