#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void encode(int n, int a[]){
for(int i = 0; i < n; i++){
send((i | ((a[i] % 16) << 4)));
send((i | ((a[i] % 16) << 4)));
send((i | ((a[i] >> 4) << 4)));
}
}
#include "decoder.h"
#include "decoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void decode(int m, int n, int a[]){
vector < int > pos[m];
for(int i = 0; i < n; i++) pos[a[i] % 16].push_back((a[i] >> 4));
for(int i = 0; i < m; i++){
int x = 0;
if(pos[i][0] == pos[i][1]){
x = (pos[i][0] | (pos[i][2] << 4));
}
else if(pos[i][0] == pos[i][2]){
x = (pos[i][0] | (pos[i][1] << 4));
}
else{
x = (pos[i][1] | (pos[i][0] << 4));
}
output(x);
}
}
