HDU1004

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

/**
 * Created by mac on 2018/12/1.
 */
public class Main {
    public static void main(String[]args){
        Scanner input = new Scanner(System.in);
        int N = input.nextInt();
        String key = "";
        while(N  != 0){
            //键值对首先选择运用map函数储存
            Map map = new HashMap<>();
            for (int i = 0; i < N;i++){
                String color = input.next();
                //看map里面有没有color，没有则添加，有则让value++ 并覆盖
                if (map.containsKey(color)){
                    int time = map.get(color)+1;
                    map.put(color,time);
                }else
                    map.put(color,1);
                int value = 0;
                //寻找出现最多次的颜色
                for (Map.Entry entry:map.entrySet()){
                    if (entry.getValue() > value){
                        key = entry.getKey();
                        value = entry.getValue();
                    }
                }
            }
            System.out.println(key);
            N = input.nextInt();
        }
        input.close();
    }
}