#include<bits/stdc++.h>
using namespace std;
#define execute cerr << "Time elapsed: " << (1.0 * clock() / CLOCKS_PER_SEC) << "s";
#define ll long long
#define ii pair<int,int>
#define se second
#define fi first
#define iii pair<int,ii>
#define all(v) v.begin(),v.end()
#define bit(x,i) ((x>>(i))&1)
#define off(x,i) (x^(1<<(i)))
#define ms(d,x) memset(d,x,sizeof(d))
#define sitingfake 1
#define orz 1
const int mod=1e9+7;
const long long linf=1e18+3;
const int inf=1e9;
const int maxarr=1e6+5;
const double pi=acos(-1);
const int dx[]={0,1,-1,0};
const int dy[]={1,0,0,-1};
const int maxn=2e5+7;
int n;
int a[maxn],k[maxn];
namespace sub2
{
int dp[maxn];
ii ans;
void trace(int i)
{
if(dp[i]==1)
{
cout<<i<<" ";
return;
}
else
{
for(int j=i-1;j>=1;j--)
{
int val=a[i]&a[j];
if(__builtin_popcount(val)==k[i]&&dp[j]==dp[i]-1)
{
trace(j);
cout<<i<<" ";
break;
}
}
}
}
void solve()
{
for(int i=1;i<=n;i++)
{
dp[i]=1;
for(int j=i-1;j>=1;j--)
{
int val=a[i]&a[j];
if(__builtin_popcount(val)==k[i])
{
dp[i]=max(dp[i],dp[j]+1);
}
}
if(dp[i]>ans.fi)
{
ans.fi=dp[i];
ans.se=i;
}
}
cout<<ans.fi<<"\n";
trace(ans.se);
}
}
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i];
for(int i=1;i<=n;i++) cin>>k[i];
sub2::solve();
//execute;
}
/*
5
5 3 5 3 5
10 1 20 1 20
*/
