#include <bits/stdc++.h>
using namespace std;
bool check(vector<int> &a) { return a[0] + a[1] + a[2] == a[3] + a[4] + a[5]; }
signed main() {
  int n;
  cin >> n;
  vector<int> a(n, 0);
  for (int i = 0; i < n; ++i) cin >> a[i], --a[i];
  vector<int> used(n, 0);
  int cnt = 0;
  for (int i = n - 1; i > -1; --i) {
    if (!used[i]) {
      used[i] = 1;
      int c = i;
      while (a[c] > -1 && !used[a[c]]) used[a[c]] = 1, c = a[c];
      ++cnt;
    }
  }
  cout << cnt << endl;
  return 0;
}
