#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b, c, x[105], y[105], z[105], count = 0, vc = 0;
  cin >> n >> a;
  set<int> ans;
  for (int i = 0; i < a; ++i) {
    cin >> x[i];
  }
  cin >> b;
  for (int i = 0; i < b; ++i) {
    cin >> y[i];
  }
  cin >> c;
  for (int i = 0; i < c; ++i) {
    cin >> z[i];
  }
  for (int i = 0; i < c; ++i) {
    for (int j = 0; j < b; ++j) {
      if (z[i] == y[j]) {
        ans.insert(z[i]);
        vc++;
        break;
      }
    }
  }
  for (int i = 0; i < c; ++i) {
    bool aa = true;
    for (int j = 0; j < a; ++j) {
      if (z[i] == x[j]) {
        aa = false;
        break;
      }
    }
    if (aa) {
      ans.insert(x[i]);
    }
  }
  cout << ans.size() << endl;
}
