import java.util.Scanner;

public class Solution {
	static int maxval=0;
	static int arr[]=new int[10000000];
  public static void main(String[] args) throws Exception{
	//  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	  Scanner scanner = new Scanner(System.in);
      int N = scanner.nextInt();
      
      for (int i = 0; i < N; i++) {
       //   System.out.println("hello world");
    	  int x=scanner.nextInt();
    	  arr[x]= arr[x]+1;
    	  if(maxval<arr[x]){
    		  maxval=arr[x];
    	  }
    	  
      }
      System.out.println(maxval);
    }
  
  
}