#include<bits/stdc++.h>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long int ll;
typedef pair<int,int> P;
const ll MOD=1000000007;
const ll INF=1000000010;
const ll LINF=4000000000000000010LL;
const int MAX=310;
const double EPS=1e-9;
int dx[4]={0,1,0,-1};
int dy[4]={1,0,-1,0};
int main(){
    vector<int>ans;
    double s,w,h;
    while(scanf("%d,%f,%f",&s,&w,&h)){
        if(w/(h*h)>=25){
            ans.push_back(s);
        }
    }
    for(auto a:ans){
        cout<<a<<endl;
    }
}

