#include <bits/stdc++.h>
using namespace std;
struct debugger {
  static void call(string::iterator it, string::iterator ed) {}
  template <typename T, typename... aT>
  static void call(string::iterator it, string::iterator ed, T a, aT... rest) {
    string b;
    for (; *it != ','; ++it)
      if (*it != ' ') b += *it;
    cout << b << "=" << a << " ";
    call(++it, ed, rest...);
  }
};
int main() {
  int n;
  scanf("%d", &n);
  int A[n];
  for (int i = 0; i < (int)(n); ++i) scanf("%d", &A[i]);
  sort(A, A + n);
  map<int, int> B;
  for (int i = 0; i < (int)(n); ++i) B[A[i]]++;
  int mx = 0;
  for (auto b : B)
    if (b.second > mx) mx = b.second;
  printf("%d\n", mx);
}
