#include "bits/stdc++.h"
#define pb push_back
#define int long long
using namespace std;
const int N = 1e2;
const int inf = 1e17;
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(0); cout.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];
}
vector<int> dp(n, 1), par(n);
int ans = 0, mxind = -1;
for(int i = 0; i < n; i++){
par[i] = i;
for(int j = i-1; j >= 0; j--){
if(__builtin_popcount(a[i]&a[j]) == k[i]){
if(dp[j] + 1 > dp[i]){
dp[i] = dp[j] + 1;
par[i] = j;
}
}
}
if(ans < dp[i]){
ans = dp[i];
mxind = i;
}
}
cout<<ans<<endl;
vector<int> ansarr;
while(par[mxind] != mxind){
ansarr.pb(mxind);
mxind = par[mxind];
}
ansarr.pb(mxind);
reverse(ansarr.begin(), ansarr.end());
for(int i = 0; i < ans; i++){
cout<<ansarr[i] + 1<<" ";
}
cout<<endl;
return 0;
}
