#include <bits/stdc++.h>
using namespace std;
int b[205];
int a[205];
int main() {
  int n, m, k;
  int x;
  scanf("%d%d%d", &n, &m, &k);
  for (int i = 1; i <= k; i++) {
    scanf("%d", &x);
    a[i] = x;
  }
  int sum = 0;
  int mm = m;
  while (n--) {
    mm = m;
    while (mm--) {
      scanf("%d", &x);
      int sb;
      for (int j = 1; j <= k; j++) {
        if (x == a[j]) {
          sb = j;
        }
      }
      sum += sb;
      b[1] = a[sb];
      int count = 2;
      for (int j = 1; j <= k; j++) {
        if (j != sb) {
          b[count++] = a[j];
        }
      }
      for (int j = 1; j <= k; j++) {
        a[j] = b[j];
      }
    }
  }
  cout << sum << endl;
}
