func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m;     cin >> n >> m;     int arr[n], brr[m], check[n], indexer = 0;     for (int i = 0; i < n; i++) cin >> arr[i], check[i] = -2;     for (int i = 0; i < m; i++) {       cin >> brr[i];       for (int j = 0; j < n; j++)         if (brr[i] == arr[j]) {           check[indexer] = j;           indexer++;         }     }     sort(check, check + indexer);     for (int j = 0; j < indexer; j++) {       cout << arr[check[j]] <<    ;     }     return 0;   }   