import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner scan = new Scanner(System.in);
        
        int n = scan.nextInt();
        int[] height = new int[n];
        int[] counter = new int[100000001];
        for(int x = 0; x < n; x++) height[x] = scan.nextInt();
        for(int y = 0; y < n; y++) counter[height[y] - 1]++;
        int candleBlow = Arrays.stream(counter).max().getAsInt();
        System.out.println(candleBlow);
    }
}