#include <iostream>
#include <cmath>
using namespace std;
int main(void){
    int s;
    double w, h;
 
    while(scanf("%d, %lf, %lf", &s, &w, &h) != EOF){
        double BMI;
        BMI = w / pow(h, 2);
        if(BMI >= 25){
            cout << s << endl;
        }
    }
}
