#include <bits/stdc++.h>
using namespace std;
const long long mxn = 1e5 + 7;
int main() {
  long long n, mx = 0, a[mxn];
  cin >> n;
  for (int i = 1; i <= n; i++) {
    int x;
    cin >> x;
    a[x]++;
  }
  for (int i = 1; i <= 101; i++) {
    mx = max(mx, a[i]);
  }
  cout << mx;
}
