/*
Author: Nguyen Chi Thanh - High School for the Gifted - VNU.HCM (i2528)
*/
#include <bits/stdc++.h>
using namespace std;
// #define int long long
#define ull unsigned long long
#define ld long double
#define pii pair<int, int>
#define fi first
#define se second
#define __builtin_popcount __builtin_popcountll
#define all(x) (x).begin(), (x).end()
#define BIT(x, i) (((x) >> (i)) & 1)
#define MASK(x) ((1ll << (x)))
#define debug(a, l, r) for (int _i = (l); _i <= (r); ++_i) cout << (a)[_i] << ' '; cout << '\n';
const int MAXN = 1e5 + 5;
int n, a[MAXN], k[MAXN];
int mxval; // For subtask3 check
void init() {
cin >> n;
for (int i = 1; i <= n; ++i) cin >> a[i];
for (int i = 1; i <= n; ++i) cin >> k[i];
mxval = *max_element(a + 1, a + n + 1);
}
namespace subtask12 {
bool check() {return n <= 5000;}
void solve() {
vector<int> dp(n + 5, 0), trace(n + 5, 0);
int res = 0, end_pos = 0;
for (int i = 1; i <= n; ++i) {
dp[i] = 1;
for (int j = 1; j < i; ++j) {
if (__builtin_popcount(a[j] & a[i]) != k[i]) continue;
if (dp[j] + 1 > dp[i]) {
dp[i] = dp[j] + 1;
trace[i] = j;
}
}
if (dp[i] > res) {
res = dp[i];
end_pos = i;
}
}
cout << res << '\n';
vector<int> path;
int cur = end_pos;
while (cur) {
path.push_back(cur);
cur = trace[cur];
}
reverse(all(path));
for (auto u : path) cout << u << ' ';
}
}
namespace subtask3 {
bool check() {return mxval < MASK(8);}
void solve() {
int M = MASK(8);
vector<int> dp_len(M, 0), dp_last(M, 0);
vector<int> trace(n + 5, 0);
int res = 0, end_pos = 0;
for (int i = 1; i <= n; ++i) {
int cur = a[i];
int bestlen = 0, bestmask = 0;
for (int premask = 0; premask < M; ++premask) {
if (__builtin_popcount(premask & cur) != k[i]) continue;
if (dp_len[premask] > bestlen) {
bestlen = dp_len[premask];
bestmask = premask;
}
}
int newlen = bestlen + 1;
trace[i] = dp_last[bestmask];
if (newlen > dp_len[cur]) {
dp_len[cur] = newlen;
dp_last[cur] = i;
}
if (newlen > res) {
res = newlen;
end_pos = i;
}
}
cout << res << '\n';
vector<int> path;
for (int cur = end_pos; cur; cur = trace[cur])
path.push_back(cur);
reverse(all(path));
for (int u : path) cout << u << ' ';
}
}
signed main() {
#ifdef NCTHANH
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
ios_base::sync_with_stdio(0);
cin.tie(nullptr); cout.tie(nullptr);
init();
if (subtask12::check()) return subtask12::solve(), 0;
if (subtask3::check()) return subtask3::solve(), 0;
return 0;
}
