import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
	int n = sc.nextInt();
    HashMap<String,Integer> map = new HashMap<String,Integer>();
    LinkedList<String> array = new LinkedList<String>();
    int max = 1;
    for(int i = 0; i < n; i++){
      String s = sc.next();
      int tmp = 1;
      if(map.containsKey(s)){
        tmp = map.get(s)+1;
      }
      map.put(s, tmp);
      
      if(tmp == max){
        array.add(s);
      } 
      else if(tmp > max){
        max = tmp;
        array.clear();
        array.add(s);
      }
    }
    
    array.sort(Comparator.naturalOrder());
    for(String value : array)
	{
      System.out.println(value);
	}
  }
}
/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