#pragma GCC optimize("O3", "Ofast", "unroll-loops")
#pragma GCC target("sse", "sse2", "sse3", "sse4", "avx2", "bmi", "bmi2", "lzcnt", "popcnt")
#include <bits/stdc++.h>
#define int long long
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define dbg(x) cerr << #x << " = " << x << '\n'
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vvi = vt< vt<int> >;
const int N = 1e6 + 5, mod = 1e9 + 7, inf = 1e18 + 7, B = 500, LIM = (1ll << 60);
const double eps = 1e-6;
int dp[N], p[N];
void solve () {
int n;
cin >> n;
vt<int> a(n + 1), k(n + 1);
for (int i = 1; i <= n; i++) cin >> a[i];
for (int i = 1; i <= n; i++) cin >> k[i];
int res = 0, ps = 0;
for (int i = 1; i <= n; i++) {
dp[i] = 1;
for (int j = 1; j < i; j++) {
if (__builtin_popcount(a[i] & a[j]) != k[i]) continue;
if (dp[i] < dp[j] + 1) {
dp[i] = dp[j] + 1;
p[i] = j;
}
}
if (dp[i] > res) res = dp[i], ps = i;
}
cout << res << '\n';
vt<int> ans;
while (ps) {
ans.pb(ps);
ps = p[ps];
}
reverse(all(ans));
for (auto x: ans) cout << x << ' ';
cout << '\n';
}
bool testcases = 0;
signed main() {
cin.tie(0) -> sync_with_stdio(0);
int test = 1;
if (testcases) cin >> test;
for (int cs = 1; cs <= test; cs++) {
solve();
}
}
