#include <bits/stdc++.h>   using namespace std;   int main(int argc, char const *argv[]) {     int n;     scanf( %d , &n);     long long int a[n], b[n], p = 0, q = 0;     for (int i = 0; i < n; ++i) {       scanf( %I64d , &a[i]);       p |= a[i];     }     for (int i = 0; i < n; ++i) {       scanf( %I64d , &b[i]);       q |= b[i];     }     printf( %I64d n , p + q);     return 0;   }   