#include "combo.h"
#include<bits/stdc++.h>
using namespace std;
int press(std::string p);
std::string guess_sequence(int N) {
// guess del primo carattere
string guess = "A";
vector<string> voc{"A", "B", "X", "Y"};
for(int i = 0; i < 4; i++){
int ret = press(voc[i]);
if(ret == 1){
guess = voc[i];
break;
}
}
for(int i = 1; i < N; i++){
for(int j = 0; j < 4; j++){
if(voc[j][0] == guess[0]) continue;
int ret = press(guess + voc[j]);
if(ret == (int)guess.length()+1){
guess += voc[j];
break;
}
}
}
return guess;
}
