#include <bits/stdc++.h>
using namespace std;
int n, m, k;
int a[100];
int ans;
int main() {
  cin >> n >> m >> k;
  for (int i = 0; i < k; i++) {
    cin >> a[i];
    a[i]--;
  }
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < m; j++) {
      int x;
      cin >> x;
      x--;
      int pos = 0;
      while (a[pos] != x) {
        pos++;
      }
      ans += pos + 1;
      for (int i = pos; i > 0; i--) {
        a[i] = a[i - 1];
      }
      a[0] = x;
    }
  }
  cout << ans;
}
