#include <bits/stdc++.h>
using i64 = long long;
#ifdef DEBUG
#include "debug.h"
#else
#define debug(...) void(23)
#endif
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
int N;
std::cin >> N;
std::vector<int> A(N), K(N);
for (int i = 0; i < N; ++i) {
std::cin >> A[i];
}
for (int i = 0; i < N; ++i) {
std::cin >> K[i];
}
std::vector<std::pair<int, int>> dp(N, {1, 0});
for (int i = 0; i < N; ++i) {
for (int j = 0; j < i; ++j) {
if (__builtin_popcount(A[i] & A[j]) == K[i]) {
dp[i] = std::max(dp[i], {dp[j].first + 1, j});
}
}
}
auto it = std::max_element(dp.begin(), dp.end());
int ans = it->first;
int now = it - dp.begin();
std::vector<int> vec;
for (int i = ans; i > 0; --i) {
vec.emplace_back(now);
now = dp[now].second;
}
std::reverse(vec.begin(), vec.end());
std::cout << ans << '\n';
for (int i = 0; i < ans; ++i) {
std::cout << vec[i] + 1 << " \n"[i == ans - 1];
}
return 0;
}
