import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] types = new int[n];
        for(int types_i=0; types_i < n; types_i++){
            types[types_i] = in.nextInt();
         
        }
        System.out.print(   sol(types));
    }
        public static int sol(int[] arr)
       {
             int count[]=new int[5];
          
             for(int i=0; i<arr.length; i++)
             {
                 count[arr[i]-1]++;
             }
            
            Arrays.sort(count);
            return count[count.length-1]+1;
         
        }
        // your code goes here

}