#include<iostream>
#include<stdio.h>
using namespace std;

int main()
{
	int i,gakuseki,tmp=-1;
	double W,L;
	double BMI;
	while(scanf("%d,%lf,%lf",&gakuseki,&W,&L)){
		if(tmp==gakuseki)break;
        tmp=gakuseki;
		BMI=W/L/L;
	  
		if(BMI>=25)
		cout<<gakuseki<<endl;
	}
	
	return 0;
}