using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

class Solution {
	public static class Cake{
		private static int _intCount;
		private static Dictionary<int, int> _dicCandles = new Dictionary<int, int>();
		
		public static int Count{
			set { _intCount = value; }
		}
		
		public static Dictionary<int, int> Candles{
			get { return _dicCandles; }
			set { _dicCandles = value; }
		}
		
		public static void ReadLine(string value){
			foreach(string val in value.Split(' ')){
				int num = Convert.ToInt32(val);
				if (Candles.ContainsKey(num)){
					Candles[num]++;
				} else {
					Candles.Add(num, 1);
				}
			}
		}
		
		public static void Display(){
			int result = 0;
			foreach(KeyValuePair<int, int> candle in Candles){
				if (candle.Value > result){
					result = candle.Value;
				}
			}
			Console.WriteLine(result);
		}
	}

    static void Main(String[] args) {
        Cake.Count = Convert.ToInt32(Console.ReadLine().Trim());
        Cake.ReadLine(Console.ReadLine().Trim());
		Cake.Display();
    }
}