#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
vector<int> a(n + 1);
vector<int> b(n + 1);
for(int i = 1; i <= n; i++) {
cin >> a[i];
}
for(int i = 1; i <= n; i++) {
cin >> b[i];
}
vector<int> dp(n + 1, 1);
vector<int> p(n + 1, - 1);
for(int i = 1; i <= n; i++) {
for(int j = i - 1; j >= 1; j--) {
if(__builtin_popcount((a[i] & a[j])) == b[i]) {
if(dp[i] < dp[j] + 1) {
dp[i] = dp[j] + 1;
p[i] = j;
}
}
}
}
int ans = 0;
for(int i = 1; i <= n; i++) {
ans = max(ans, dp[i]);
}
vector<int> s;
for(int i = n; i >= 1; i--) {
if(ans == dp[i]) {
int x = i;
while(x != - 1) {
s.push_back(x);
x = p[x];
}
break;
}
}
reverse(s.begin(), s.end());
cout << ans;
cout << endl;
for(auto it : s) {
cout << it << " ";
}
}
