#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 5007;
int dp[N], p[N];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
vector <int> a(n), k(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
for (int i = 0; i < n; i++) {
cin >> k[i];
dp[i] = 1;
p[i] = -1;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < i; j++) {
if (__builtin_popcount(a[i] & a[j]) == k[i]) {
dp[i] = max(dp[i], dp[j] + 1);
p[i] = j;
}
}
}
int ans = 0;
for (int i = 0; i < n; i++) {
ans = max(ans, dp[i]);
}
vector <int> res;
for (int i = 0; i < n; i++) {
if (dp[i] == ans) {
while (i != -1) {
res.push_back(i);
i = p[i];
}
break;
}
}
reverse(res.begin(), res.end());
cout << ans << '\n';
for (int x : res) {
cout << x + 1 << ' ';
}
return 0;
}
