#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int *arr = new int[n];
  for (int i = 0; i < n; i++) {
    cin >> arr[i];
  }
  int *fre = new int[101]();
  for (int i = 0; i < n; i++) {
    fre[arr[i]]++;
  }
  sort(fre, fre + 101);
  cout << fre[100] << endl;
}
