#include <iostream>
using namespace std;

int main(){
    int id;
    double weight;
    double height;

    while(scanf("%d,%lf,%lf", &id, &weight, &height) != EOF){
        double bmi = weight / (height * height);
        if(bmi >= 25.0){
            cout << id << endl;
        }
    }

    return 0;
}