#include "message.h"
#include <bits/stdc++.h>
using namespace std;
template <typename T>
using v = vector<T>;
#define rep(i, k, n) for (int i =k; i < n; i++)
using ll = long long;
using pii = pair<int, int>;
void send_message(std::vector<bool> M, std::vector<bool> C) {
v<int> bits;
rep(i, 0, 31) {
if (!C[i]) bits.push_back(i);
}
v<v<bool>> pack(5, v<bool>(31, false));
rep(i, 0, 16) {
int now = bits[(i+1)%16];
int j = 0;
//cout << i << endl;
rep(j, 0, 5) {
if (now&1) pack[j][bits[i]] = true;
else pack[j][bits[i]] = false;
now /= 2;
}
}
rep(i, 0, 5) {
send_packet(pack[i]);
}
//for (auto x : M) cout << x << " ";
//cout << endl;
v<bool> lg(31, false);
int k = M.size();
//cout << k << endl;
rep(i, 0, 31) {
if (C[i] == 1) continue;
//cout << (k&1) << " " << k << endl;
if (k&1) lg[i] = true;
k /= 2;
}
send_packet(lg);
int l = 0;
rep(i, 0, (int)M.size()) {
if (l == (int)M.size()) break;
v<bool> A(31, false);
rep(j, 0, 31) {
if (l == (int)M.size()) break;
if (C[j]) continue;
A[j] = M[l];
l++;
}
send_packet(A);
}
}
v<int> par;
v<int> anterior;
v<int> vis;
v<int> cont;
void dfs(int n) {
vis[n] = 1;
//cout << n << endl;
int u = par[n];
if (vis[u] == 1) {
anterior[u] = n;
v<int> cycle;
while (anterior[u] != par[n]) {
cycle.push_back(anterior[u]);
u = anterior[u];
}
cycle.push_back(par[n]);
if ((int)cycle.size() == 16) {
cont = cycle;
vis[n] = 2;
return;
}
}
else if (vis[u] == 0) {
anterior[u] = n;
dfs(u);
}
vis[n] = 2;
}
std::vector<bool> receive_message(std::vector<std::vector<bool>> R) {
par.resize(31);
anterior.assign(31, -1);
vis.assign(31, 0);
cont.resize(6);
v<bool> C(31, true);
rep(i, 0, 31) {
int n = 0;
rep(j, 0, 5) {
if (R[j][i] == 1) n += (1 << j);
}
par[i] = n;
}
rep(i, 0, 31) {
if (vis[i] == 0) dfs(i);
}
for (auto x : cont) {
//cout << x << endl;
C[x] = false;
}
//for (auto x : C) cout << x << " "; cout << endl;
int n = 0;
int b = 0;
//cout << endl;
v<bool> aux = R[5];
//for (auto x : aux) cout << x << " "; cout << endl;
rep(i, 0, 31) {
if (C[i]) continue;
if (aux[i]) n += (1 << b);
b++;
}
//cout << n << endl;
//cout << n << endl;
v<bool> message(n);
int l = 0;
rep(i, 6, (int)R.size()) {
if (l == n) break;
rep(j, 0, 31) {
//cout << R[i][j] << " ";
if (l == n) break;
if (C[j]) continue;
message[l] = R[i][j];
l++;
}
//cout << endl;
}
return message;
}
