#include <stdio.h>

int main(void){
    int num[100],i;
    double hvy[100],hight[100];
    for(i=0;scanf("%d,%lf,%lf",&num[i],&hvy[i],&hight[i])!=EOF;i++){
        if(hvy[i]/hight[i]/hight[i]>=25){
            printf("%d\n",num[i]);
        }
        
    }
    
    return 0;
}