#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, t;
  cin >> n;
  vector<int> cnt(101, 0);
  for (int i = 0; i < n; ++i) {
    cin >> t;
    cnt[t]++;
  }
  int ans = -1;
  for (int i = 0; i < 101; ++i) ans = max(ans, cnt[i]);
  cout << ans;
}
