#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void dbg(int n) {
for (int i = 0; i < 8; ++i) {
cout << (n >> i & 1);
}
cout << endl;
}
void encode(int N, int M[])
{
for (int i = 0; i < N; ++i) {
int msg = 0;
for (int j = 0; j < 4; ++j) {
if (i >> j & 1) {
msg += 1 << j;
}
}
for (int j = 0; j < 8; ++j) {
int now = msg;
for (int k = 0; k < 3; ++k) {
if (j >> k & 1) {
now += (1 << (k + 4));
}
}
now += (1 << 7) * (M[i] >> j & 1);
// dbg(now);
send(now);
}
}
}
#include "decoder.h"
#include "decoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void decode(int N, int L, int X[])
{
vector<int> res(N);
for (int i = 0; i < L; ++i) {
int index = 0;
for (int j = 0; j < 4; ++j) {
if (X[i] >> j & 1) {
index += (1 << j);
}
}
int bit = 0;
for (int j = 4; j < 7; ++j) {
if (X[i] >> j & 1) {
bit += (1 << (j - 4));
}
}
int state = (X[i] >> 7 & 1);
res[index] += state * (1 << bit);
}
for (int i = 0; i < N; ++i) {
output(res[i]);
}
}
