using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution
{

    static void Main(String[] args)
    {
        int n = Convert.ToInt32(Console.ReadLine());
        var array = Console.ReadLine().ToCharArray().Where(x => x != ' ').ToList();
        var dict = new Dictionary<int, int>();
        for (int i = 0; i < array.Count; i++)
        {
            int k = (int)Char.GetNumericValue(array[i]);
            if (dict.ContainsKey(k))
            {
                dict[k]++;
            }
            else
            {
                dict.Add(k, 1);
            }
        }

        var maxList = dict.OrderByDescending(x => x.Value).ThenBy(x=>x.Key).Select(x => x.Key).ToList();


        Console.WriteLine(maxList[0]);
    }
}