#include <iostream>
#include <cmath>
using namespace std;

int main(void){
    int n,num,h,w;
    
    while(1){
        double best = 22,tmp;
        int bn;
        
        cin >> n;
        if(!n) break;
        
        for(int i = 0 ; i < n ; i++){
            cin >> num >> h >> w;
            
            double nh = (double)h / 100;
            double BMI = (double)w / (nh*nh);
            if(!i){
                tmp = fabs(BMI-best);
                bn = num;
                continue;
            }
            
            if(tmp > fabs(BMI-best)){
                tmp = fabs(BMI-best);
                bn = num;
            }
        }
        cout << bn << endl;
    }

    return 0;
}