#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i=(b) - 1;i>=(a);i--)
#define REP(i,n) for(int i=0;i<(n);i++)
#define RREP(i,n) for(int i=n-1;i>=0;i--)

#define PB push_back
#define INF INT_MAX/3
#define ALL(a) (a).begin(),(a).end()
#define CLR(a) memset(a,0,sizeof(a))

typedef long long int ll;

using namespace std;

int main(){
    while(true){
	int n;
	pair< int,double > b;
	b= pair<int,double>(0,10000000.0);
	cin >> n;
	if(n == 0) break;
	REP(i,n){
	    double j,h,w;
	    cin >> j >> h >> w;
	    h /= 100;
	    double bmi = w / (h*h);
	    bmi = abs(bmi - 22.0);
	    if(b.second > bmi){
		b.first = (int)j;
		b.second = bmi;
	    }
	}
	cout << b.first << endl;
    }
    return 0;
}