#include <bits/stdc++.h>
using namespace std;
int32_t main() {
  long long int n;
  cin >> n;
  map<long long int, long long int> m;
  for (long long int i = 0; i < n; i++) {
    long long int x;
    cin >> x;
    m[x]++;
  }
  long long int cnt = INT_MIN;
  for (auto it = m.begin(); it != m.end(); it++) {
    cnt = max(cnt, it->second);
  }
  cout << cnt << "\n";
}
