#include <bits/stdc++.h>
#define int long long
using namespace std;
const int MAXA = (1 << 20);
signed main() {
ios_base::sync_with_stdio(0), cin.tie(0);
int n;
cin >> n;
vector<int> a(n);
for (auto& el : a)
cin >> el;
vector<int> k(n);
for (auto& el : k)
cin >> el;
vector<int> dp(n);
vector<int> par(n);
for (int i = 0; i < n; ++i) {
dp[i] = 1;
par[i] = -1;
for (int j = 0; j < i; ++j) {
if (__builtin_popcount(a[i] & a[j]) == k[i]) {
if (dp[j] + 1 > dp[i]) {
dp[i] = dp[j] + 1;
par[i] = j;
}
}
}
}
int mx = 0, mxi = 0;
for (int i = 0; i < n; ++i) {
if (dp[i] > mx) {
mx = dp[i];
mxi = i;
}
}
cout << mx << '\n';
int cur = mxi;
vector<int> ans;
while (cur != -1) {
ans.push_back(cur);
cur = par[cur];
}
reverse(ans.begin(), ans.end());
for (auto el : ans)
cout << el + 1 << ' ';
}
