func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, k;     cin >> n >> m >> k;     deque<int> items;     int tmp;     for (int i = 0; i < k; i++) {       cin >> tmp;       items.push_back(tmp);     }     int ans = 0;     for (int i = 0; i < n * m; i++) {       cin >> tmp;       for (int j = 0; j < items.size(); j++) {         if (items[j] == tmp) {           ans += j + 1;           items.erase(items.begin() + j);           items.push_front(tmp);           break;         }       }     }     cout << ans << endl;     return 0;   }   