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 sc=new Scanner(System.in);
        int a=sc.nextInt();
        int i=0,c,max=0;
        int b[]={0,0,0,0,0,0,0,0,0,0};
        while(i<a){
            c=sc.nextInt();
            switch(c){
                case 0: b[0]++;
                if(b[0]>max)
                    max=b[0];
                break;
                case 1: b[1]++;
                if(b[1]>max)
                    max=b[1];
                break;
                case 2: b[2]++;
                if(b[2]>max)
                    max=b[2];
                break;
                case 3: b[3]++;
                if(b[3]>max)
                    max=b[3];
                break;
                case 4: b[4]++;
                if(b[4]>max)
                    max=b[4];
                break;
                case 5: b[5]++;
                if(b[05]>max)
                    max=b[5];
                break;
                case 6: b[6]++;
                if(b[6]>max)
                    max=b[6];
                break;
                case 7: b[7]++;
                if(b[7]>max)
                    max=b[7];
                break;
                case 8: b[8]++;
                if(b[8]>max)
                    max=b[8];
                break;
                case 9: b[9]++;
                if(b[9]>max)
                    max=b[9];
                break;
            }
            i++;
        }
        System.out.println(max);
    }
}