func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int N, F, M;     cin >> N >> F >> M;     int FR[200], MO[200];     vector<int> V;     int mi = 10000;     for (int i = 0; i < F; ++i) cin >> FR[i];     for (int j = 0; j < M; ++j) cin >> MO[j];     for (int i = 0; i < F; ++i) {       int cnt = 0;       for (int j = 0; j < M; ++j)         if (MO[j] % FR[i] == 0) cnt++;       if (cnt < mi) {         V.clear();         V.push_back(i + 1);         mi = cnt;       } else if (mi == cnt)         V.push_back(i + 1);     }     cout << V.size() << endl;     for (int i = 0; i < V.size(); ++i) {       if (i < V.size() - 1)         cout << V[i] <<    ;       else         cout << V[i] << endl;     }   }   