#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  ;
  cout.tie(0);
  int n, i;
  cin >> n;
  int a[n], f[105] = {0};
  int m = 0;
  for (i = 1; i <= n; i++) {
    cin >> a[i];
    f[a[i]]++;
    if (f[a[i]] > m) m = f[a[i]];
  }
  cout << m << endl;
}
