#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string Btns[] = {"A","B","X","Y"};
string guess_sequence(int N) {
string s = "";
int p = 0;
int long_gues = 0;
if (press(Btns[0]) == 1) {
s += Btns[0];
p = 0;
long_gues++;
}
else if (press(Btns[1]) == 1) {
s += Btns[1];
p = 1;
long_gues++;
}
else if (press(Btns[2]) == 1){
s += Btns[2];
p = 2;
long_gues++;
}
else if (press(Btns[3]) == 1) {
s += Btns[3];
p = 3;
long_gues++;
}
if (N == 1)
{
return s;
}
int last_one = 0;
for(int i = long_gues + 1;i <= N;)
{
bool fact = false;
if (press(s + Btns[last_one]) == i)
{
s += Btns[last_one];
fact = true;
long_gues++;
i++;
}
else if (fact == false)
{
int k = 0;
for(int j = 0;j <= 3;j++)
{
while(true)
{
if(k == p) k++;
if(k > 3) k = 0;
if(j != p && !fact && k != p)
{
if(press(s + Btns[j] + Btns[k]) == i+1)
{
s += Btns[j] + Btns[k];
i += 2;
fact = true;
last_one = k;
break;
}
k++;
}
}
}
}
}
return s;
}
