#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> count(101);
  for (int i = 0; i < n; i++) {
    int x;
    cin >> x;
    ++count[x];
  }
  cout << *max_element(count.begin(), count.end()) << endl;
  return 0;
}
