#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
  int t = 1;
  while (t--) {
    long long n;
    cin >> n;
    map<long long, long long> mpp;
    for (int i = 0; i < n; i++) {
      long long a;
      cin >> a;
      mpp[a]++;
    }
    long long mx = 0;
    for (auto i : mpp) {
      mx = max(i.second, mx);
    }
    cout << mx << "\n";
  }
  return 0;
}
