import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    TreeMap<String,Integer> tm = new TreeMap<>();
    int max = 1;
    for(int i = 0;i<n;i++){
      String s = sc.next();
      if(tm.containsKey(s)){
        tm.put(s,tm.get(s) + 1);
        max = Math.max(max,tm.get(s));
      }else{
        tm.put(s,1);
      }
    }
    for(String ss: tm.keySet()){
      if(tm.get(ss) == max){
        System.out.println(ss);
      }
    }
  }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz