#include <bits/stdc++.h>
using namespace std;
int freq[200];
int main() {
  int n, maxnum = -1, maxfreq = -1;
  cin >> n;
  int arr[n];
  for (int i = 0; i < n; i++) {
    cin >> arr[i];
    maxnum = max(maxnum, arr[i]);
    freq[arr[i]]++;
  }
  for (int i = 1; i <= maxnum; i++) {
    maxfreq = max(maxfreq, freq[i]);
  }
  cout << maxfreq;
}
