#include <bits/stdc++.h>
using namespace std;
long long n, x, mx;
map<long long, long long> mp;
string h;
int main() {
  ios::sync_with_stdio(0), cin.tie(NULL), cout.tie(NULL);
  cin >> n;
  for (long long i = 1; i <= n; i++) {
    cin >> x;
    mp[x]++;
    mx = max(mx, mp[x]);
  }
  cout << mx;
}
