func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long mod = 1e9 + 7;   const int N = 2e5 + 4;   int main() {     int n;     scanf( %d , &n);     long long b[n], c[n], sum = 0;     for (int i = 0; i < n; i++) scanf( %lld , &b[i]), sum += b[i];     for (int i = 0; i < n; i++) scanf( %lld , &c[i]), sum += c[i];     if (sum % 2 * n != 0) {       printf( %d , -1);       return 0;     }     sum /= 2 * n;     long long a[n];     for (int i = 0; i < n; i++) {       long long here = b[i] + c[i] - sum;       if (here >= 0 and here % n != 0) {         printf( %d , -1);         return 0;       }       a[i] = here / n;     }     vector<int> fa(31, 0);     for (int bit = 0; bit < 31; bit++) {       for (int i = 0; i < n; i++)         if (a[i] & (1LL << bit)) fa[bit]++;     }     for (int i = 0; i < n; i++) {       for (int bit = 0; bit < 31; bit++)         if (a[i] & (1LL << bit)) b[i] -= (1LL << bit) * fa[bit];       if (b[i] != 0) {         printf( %d , -1);         return 0;       }     }     for (int i = 0; i < n; i++) printf( %lld  , a[i]);     return 0;   }   