#include <cstdio>

int main()
{
        int s;
        double w, h;

        while (scanf("%d,%lf,%lf", &s, &w, &h) != EOF) {
                double bmi = w / (h * h);
                if (bmi >= 25.0) {
                        printf("%d\n", s);
                }
        }

        return 0;
}