import java.sql.Array;
import java.util.*;
public class Main {
	public static void main(String[] args){
      	
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		Map<String, Integer> map = new HashMap<>();
		for (int i = 0; i < N; i++) {
			String S = sc.next();
			if(!map.containsKey(S)){
				map.put(S, 1);
			}else{
				map.put(S,map.get(S)+1);
			}
		}
		int cnt = 0;
		for (String key : map.keySet()) {
			if (cnt<map.get(key)) {
				cnt = map.get(key);
			}
		}
		ArrayList<String> list = new ArrayList<>();
		for (String key : map.keySet()) {
			if (cnt==map.get(key)) {
				list.add(key);
			}
		}
		Collections.sort(list);
		for (String string : list) {
			System.out.println(string);
		}
		sc.close();
    }	
		
}
/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