#include <bits/stdc++.h>
using namespace std;
int main(void) {
  vector<int> a(4);
  vector<int> b(4);
  while (cin >> a[0]) {
    int va[10] = {0};
    int vb[10] = {0};
    for (int i = 1; i < 4; i++) {
      cin >> a[i];
      va[--a[i]]++;
    }
    int hit = 0;
    for (int i = 0; i < 4; i++) {
      cin >> b[i];
      if (a[i] == b[i]) hit++;
      vb[--b[i]]++;
    }
    int blow = 0;
    for (int i = 0; i < 10; i++) {
      blow += min(va[i], vb[i]);
    }
    cout << hit << blow - hit << endl;
  }
}
