#include <bits/stdc++.h>
//#include <ext/pb_ds/detail/standard_policies.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx2")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
using namespace std;
//using namespace __gnu_pbds;
//template <typename T> using ordered_set = tree <T, null_type, less < T >, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 gen(time(0));
#define ll long long
#define ld long double
#define pb push_back
#define F first
#define S second
#define TIME clock() * 1.0 / CLOCKS_PER_SEC
#define sz(a) int32_t(a.size())
#define endl '\n'
//#define int long long
const int N = 1e5 + 100;
const int M = 31;
const int mod = 998244353;
const int inf = 1e9 + 7;
int a[N], b[N], dp[N], pr[N];
int32_t main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#else
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
#endif // LOCAL
int n;
cin >> n;
for(int i = 0; i < n; i++)
cin >> a[i];
for(int i = 0; i < n; i++)
cin >> b[i];
for(int i = 0; i < n; i++)
{
dp[i] = 1;
pr[i] = -1;
for(int j = i - 1; j >= 0; j--)
{
int c = (a[i] & a[j]);
c = __builtin_popcount(c);
if (b[i] != c) continue;
if (dp[j] + 1 > dp[i])
{
dp[i] = dp[j] + 1;
pr[i] = j;
}
}
}
int i = 0;
for(int j = 1; j < n; j++)
if (dp[j] > dp[i]) i = j;
vector < int > ans;
while (i >= 0)
{
ans.pb(i);
i = pr[i];
}
reverse(ans.begin(), ans.end());
cout << sz(ans) << endl;
for(auto to: ans)
cout << to + 1 << " ";
}
