#include<iostream>
using namespace std;
int main(){
    int n;
    cin >> n;
    int a[100], count[100];

    for(int i = 0; i < n; i++){
        cin >> a[i];
        count[i] = -1;
    }

    for(int i = 0; i < n; i++){
        int c = 1;
        for(int j = i + 1; j < n; j++){
            if(a[i] == a[j]){
                c++;
                count[j] = 0;
            }
        }
        if(count[i] != 0){
            count[i] = c;
        }
    }

    int maxFreq = 0;
    for(int i = 0; i < n; i++){
        if(count[i] > maxFreq){
            maxFreq = count[i];
        }
    }

    cout << maxFreq << endl;

    return 0;
}