import java.io.*;
import java.util.Scanner;

public class Exam1 {
  public static void main(String[] args) throws IOException {
    //------------------------------------------
    Scanner fin = new Scanner(new File("c:/mydata.txt"));
    int n = fin.nextInt();
    String[] names = new String[n];
    int[] ages = new int[n];
    for (int i = 0; i < n; i++) {
      names[i] = fin.next();
      ages[i] = fin.nextInt();
    }
    fin.close();
    //------------------------------------------    
    for (int k = names.length - 1; k >= 1; k--) {
      int imax = 0;
      for (int i = 1; i <= k; i++) {
        if (names[i].compareTo(names[imax]) > 0) imax = i;
      }
      String t = names[imax];
      names[imax] = names[k];
      names[k] = t;
      
      int a = ages[imax];
      ages[imax] = ages[k];
      ages[k] = a;
    }
    //------------------------------------------    
    for (int i = 0; i < names.length; i++) {
      System.out.println(names[i] + ", " + ages[i]);
    }
    //------------------------------------------
    double sumAges = 0;
    for (int i = 0; i < ages.length; i++) {
      sumAges += ages[i];
    }
    double avgAge = sumAges / n;
    double[] diffAges = new double[n];
    for (int i = 0; i < ages.length; i++) {
      diffAges[i] = Math.abs(ages[i] - avgAge);
    }
    int imin = 0;
    for (int i = 1; i < diffAges.length; i++) {
      if (diffAges[i] < diffAges[imin]) imin = i;
    }
    System.out.println(names[imin] + ", " + ages[imin]);
      
  }
}