#include <bits/stdc++.h>
using namespace std;
const int MAX = 5e3 + 111;
int n;
map<int, int> mp;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> n;
  for (int i = 0; i < n; ++i) {
    int a;
    cin >> a;
    ++mp[a];
  }
  int ans = 0;
  for (auto it : mp) {
    ans = max(ans, it.second);
  }
  cout << ans;
  return 0;
}
