#include <bits/stdc++.h>
using namespace std;
#define lesgooo ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define endl '\n'
#define int long long
signed main()
{
lesgooo;
int n;
cin >> n;
int a[n], b[n]{};
for (int i = 0; i < n; i++) cin >> a[i];
for (int i = 0; i < n; i++) cin >> b[i];
int dp[n]{};
for (int i = 0; i < n; i++)
{
for (int j = 0; j < i; j++) if (__builtin_popcount(a[i] & a[j]) == b[i]) dp[i] = max(dp[i], dp[j]);
dp[i]++;
}
int mx = 0, pos = 0;
for (int i = 0; i < n; i++)
{
if (dp[i] > mx) mx = dp[i], pos = i;
}
stack<int> s;
while (dp[pos] > 1)
{
s.push(pos);
for (int j = 0; j < pos; j++) if (__builtin_popcount(a[pos] & a[j]) == b[pos] && dp[j] + 1 == dp[pos]) {pos = j; break;}
}
cout << s.size()+1 << endl;
cout << pos+1 << " ";
while (s.size()) cout << s.top()+1 << " ", s.pop();
return 0;
}
