func_code_string: #include <bits/stdc++.h>   using namespace std;   int gcf(int A, int B) {     if (A < B)       return gcf(B, A);     else if (B == 0)       return A;     else       return gcf(B, A % B);   }   int main() {     int n, m;     cin >> m >> n;     bool A[m], B[n];     memset(A, 0, sizeof(A));     memset(B, 0, sizeof(B));     int x, y;     cin >> x;     for (int i = 0; i < x; i++) {       int temp;       cin >> temp;       A[temp] = 1;     }     cin >> y;     for (int i = 0; i < y; i++) {       int temp;       cin >> temp;       B[temp] = 1;     }     for (int i = 0; i < 5000000; i++) {       if (A[i % m] || B[i % n]) A[i % m] = B[i % n] = 1;     }     for (int i = 0; i < m; i++) {       if (!A[i]) {         cout <<  No ;         return 0;       }     }     for (int i = 0; i < n; i++) {       if (!B[i]) {         cout <<  No ;         return 0;       }     }     cout <<  Yes ;     return 0;   }   