#include <bits/stdc++.h>
using namespace std;
const double pi = 3.14159265359;
const long long int Maxi = 1e18;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  long long n, m, i, j, l, k = 0, p = 0, s = 0, t = 1, x, y, z, r, c;
  long long a[100005] = {0};
  map<long long, long long> mp;
  cin >> n;
  for (i = 0; i < n; i++) {
    cin >> x;
    mp[x]++;
    s = max(s, mp[x]);
  }
  cout << s;
  return 0;
}
