func_code_string: #include <bits/stdc++.h>   using namespace std;   bool used[15];   int main() {     int n, m, a[15], b[15];     cin >> n >> m;     for (int i = 1; i <= n; i++) cin >> a[i];     for (int j = 1; j <= m; j++) cin >> b[j];     for (int i = 1; i <= n; i++) {       for (int j = 1; j <= m; j++) {         if (a[i] == b[j] && used[j] == 0) {           used[j] = 1;           cout << a[i] <<    ;         }       }     }   }   