#include <bits/stdc++.h>
using namespace std;
const int N = 300;
map<int, int> m;
int main() {
  ios_base::sync_with_stdio(false);
  int i, j, n;
  cin >> n;
  int p = 0;
  int k = 0;
  for (i = 1; i <= n; ++i) {
    cin >> j;
    if (m[j] == 0)
      ++k;
    else
      m[j]--;
    m[i]++;
  }
  cout << k << endl;
}
