#include<iostream>
#include<algorithm>
#include<vector>
#include<cstdio>
#include<cstring>
#include<climits>
#include<cfloat>
#include<cmath>
#include<map>
#include<complex>

#define f first
#define s second
#define mp make_pair

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,c) for(__typeof((c).begin()) i=(c).begin(); i!=(c).end(); i++)
#define ALL(c) (c).begin(), (c).end()
#define DBL(x) ((x)*(x))

typedef unsigned int uint;
typedef long long ll;

using namespace std;

int main(){
  char buff[64];
  double w,h;
  while(~scanf(" %[0-9],%lf,%lf",buff,&w,&h))
    if(w/(h*h) >= 25.0) puts(buff);
  return 0;
}