func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long tc, n, arr1[100005], m, arr2[100005], count = 0, even = 0,                                                     even2 = 0, odd = 0, odd2 = 0;     cin >> tc;     while (tc--) {       cin >> n;       for (int i = 0; i < n; i++) {         cin >> arr1[i];         if (arr1[i] % 2 == 0)           even++;         else           odd++;       }       cin >> m;       for (int i = 0; i < m; i++) {         cin >> arr2[i];         if (arr2[i] % 2 == 0)           even2++;         else           odd2++;       }       count += even * even2;       count += odd * odd2;       cout << count << endl;       count = 0;       even = 0;       even2 = 0;       odd = 0;       odd2 = 0;     }   }   