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<>();
        for (int i = 0; i < n; i++) {
            String s = sc.next();
            if (map.containsKey(s)) {
                map.put(s, map.get(s) + 1);
            } else {
                map.put(s, 1);
            }
        }
        int max = 0;
        ArrayList<String> list = new ArrayList<>();
        for (Map.Entry<String, Integer> entry : map.entrySet()) {
            int x = entry.getValue();
            if (max < x) {
                list.clear();
                list.add(entry.getKey());
                max = x;
            } else if (max == x) {
                list.add(entry.getKey());
            }
        }
        Collections.sort(list);
        StringBuilder sb = new StringBuilder();
        for (String s : list) {
            sb.append(s).append("\n");
        }
        System.out.print(sb);
    }
}
/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