#include <stdio.h>
double abs(double d){ return d < 0 ? -d : d; }
double BMI(int h, int w){ return 10000.0 * w / h / h; }
void main(){
  int n, i, h, w, j;
  double d;
  while(scanf("%d", &n) && n){
    d = 2000000; /* BMI(1,200) */
    while(n--){
      scanf("%d %d %d", &i, &h, &w);
      if(abs(BMI(h,w)-22) < d){
        j = i;
        d = abs(BMI(h,w)-22);
      }
    }
    printf("%d\n", j);
  }
}