#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  vector<int> cnt(101);
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
    cnt[a[i]]++;
  }
  int ans = 0;
  for (int i = 1; i <= 100; ++i) {
    ans = max(ans, cnt[i]);
  }
  cout << ans << endl;
  return 0;
}
