#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
vector<int> a(n + 5, 0), b(n + 5, 0), dp(n + 5, 1), par(n + 5, -1);
for(int i = 1; i <= n; ++i){
cin >> a[i];
}
for(int i = 1; i <= n; ++i){
cin >> b[i];
}
pair<int, int> mx = {0, 0};
for(int i = 1; i <= n; ++i){
for(int j = i - 1; j >= 1; --j){
if(__builtin_popcount(a[i] & a[j]) == b[i] && dp[i] < dp[j] + 1){
dp[i] = dp[j] + 1;
par[i] = j;
}
}
mx = max(mx, {dp[i], i});
}
vector<int> ans;
int i = mx.second;
while(i != -1){
ans.push_back(i);
i = par[i];
}
cout << (int) ans.size() << "\n";
reverse(ans.begin(), ans.end());
for(auto it : ans) cout << it << " ";
return 0;
}
