#include "combo.h"
#include <iostream>
using namespace std;
std::string guess_sequence(int N) {
string p="";
int coins;
for(int i=0;i<4;i++)
{
if(i==0) p="A";
else if(i==1) p="B";
else if(i==2) p="X";
else p="Y";
coins = press(p);
if(coins==1) break;
}
int now=1;
bool BREAK=1;
string c;
if(p=="A") c="BXY";
else if(p=="B") c="AXY";
else if(p=="X") c="ABY";
else c="ABX";
BREAK=1;
while(1>0)
{
string prev=p;
for(char i : c)
{
p+=i;
coins=press(p);
if(coins!=now)
{
now++;
BREAK=0;
break;
}
else p=prev;
}
if(BREAK) break;
}
return p;
}
