#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define fi first
#define se second
#define all(x) x.begin(),x.end()
#define sp <<' '<<
#define pb push_back
#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)
#define cont(a) for(auto el:a) cout<<el<<' '; cout<<endl;
#define contp(a) for(auto el:a) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;
#define DEBUG(x) cout<<#x sp ":" sp x<<endl;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef long long ll;
#define mid (l+r)/2
#define topla(x,y) ((x%MOD)+(y%MOD))%MOD
#define carp(x,y) ((x%MOD)*(y%+MOD))%MOD
const int MAXN=300;
int n;
vi a,k;
pii dp[MAXN];
//dp[i]-->{i.sayıyla biten max lengthli array ve bir önceki eleman}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>n;
a.resize(n+1);
k.resize(n+1);
int mx=0;
FORE(i,1,n+1){
cin>>a[i];
mx=max(mx,a[i]);
}
FORE(i,1,n+1) cin>>k[i];
if(mx<300){ //3.subtask
pii cev={1,0};
vb used(300,false);
used[1]=true;
FORE(i,1,n+1){
pii tut={1,0};
FOR(j,256){
if(__builtin_popcount(j&a[i])!=k[i]) continue;
if(!used[j]) continue;
//cout<<"here" sp j sp a[i] sp k[i]<<endl;
if(dp[j].fi+1>tut.fi){
tut.fi=dp[j].fi+1;
tut.se=j;
}
}
dp[i]=tut;
if(dp[i].fi>cev.fi){
cev.fi=dp[i].fi;
cev.se=i;
}
used[a[i]]=true;
}
//DEBUG(cev.fi);
//DEBUG(cev.se);
cout<<cev.fi<<endl;
vi route;
while(dp[cev.se].se!=0){
route.pb(cev.se);
cev.se=dp[cev.se].se;
}
route.pb(1);
reverse(all(route));
cont(route);
}
/*else{ //1 ve 2. subtask
}*/
}
