Let the Balloon Rise

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

import javax.swing.text.html.HTMLDocument.Iterator;

public class Main{
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        while(sc.hasNext()) {
            int n=sc.nextInt();
            if(n==0) {
                break;
            }
            Map<String,Integer> map=new HashMap<String,Integer>();
            for(int i=0;i<n;i++) {
                String key=sc.next();
                if(!map.containsKey(key)) {
                    map.put(key, 1);
                }
                else {
                    int temp=map.get(key);
                    map.put(key, ++temp);
                }
            }
            int max=Integer.MIN_VALUE;
            String color="";
            java.util.Iterator<String> it=map.keySet().iterator();
            while(it.hasNext()) {
                String theKey=it.next();
                int theValue=map.get(theKey);
                if(max<theValue) {
                    color=theKey;
                    max=theValue;
                }
            }
            System.out.println(color);
        }
    }
}