import java.util.*;
public class Main {
	    public static void main(String[] args){
	        Scanner sc = new Scanner(System.in);
	        int n = sc.nextInt();
	        String[] a = new String[n];
	        for (int i = 0;i<n;i++) {
	            a[i] = sc.next();
	        }
	        int max = 0;
	        Map<String, Integer> map = new HashMap<>();
	        for (String s : a) {
	            int count = map.getOrDefault(s, 0);
	            ++count;
	            map.put(s,count);
	            max = Math.max(max, count);
	        }
	        List<String> l = new ArrayList<>();
	        for (Map.Entry<String, Integer> e : map.entrySet()) {
	            if (max == e.getValue()) l.add(e.getKey());
	        }
	        Collections.sort(l);
	        for (String s : l) System.out.println(s);
	        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