#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long n;
  cin >> n;
  vector<long long> a(n);
  map<long long, long long> mp;
  long long ans = 0;
  for (long long i = 0; i < n; i++) {
    cin >> a[i];
    if (mp[a[i]]) {
      mp[a[i]] = 0;
      mp[i + 1] = 1;
    } else {
      mp[i + 1] = 1;
      ans++;
    }
  }
  cout << ans;
  return 0;
}
