#include <bits/stdc++.h>
using namespace std;
long long int min_boxes(long long int a[], long long int n) {
  long long int ans = 1;
  map<long long int, long long int> freq;
  for (int i = 0; i < n; i++) {
    if (freq.find(a[i]) == freq.end()) {
      freq[a[i]] = 1;
    } else {
      freq[a[i]]++;
    }
  }
  map<long long int, long long int>::iterator itr;
  for (itr = freq.begin(); itr != freq.end(); itr++) {
    ans = max(ans, itr->second);
  }
  return ans;
}
int main() {
  long long int n;
  cin >> n;
  long long int a[n];
  for (long long int i = 0; i < n; i++) {
    cin >> a[i];
  }
  cout << min_boxes(a, n) << endl;
}
