#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
using ll = long long;
const int maxn=1e5+5;
int n,k,a[maxn],pos;
pair<int,int>dp[maxn];
vector<int>v;
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n;
for(int i = 1;i <= n;i++) cin >> a[i];
for(int i = 1;i <= n;i++){
cin >> k;
dp[i] = {1,i};
for(int j = 1;j < i;j++)
if(__builtin_popcount(a[i]&a[j]) == k and dp[j].first + 1 > dp[i].first) dp[i].first = dp[j].first+1,dp[i].second=j;
if(dp[pos].first < dp[i].first) pos = i;
}
cout<<dp[pos].first<<'\n';
while(dp[pos].second != pos){
v.push_back(pos);
pos = dp[pos].second;
}
v.push_back(pos);
reverse(v.begin(),v.end());
for(auto i : v) cout<<i<<' ';
}
/*
4
1 2 3 4
10 0 1 0
2
8 9
20 0
5
5 3 5 3 5
10 1 20 1 20
*/
