#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
string Ss[100] = {"A", "B", "X", "Y"};
string s[100];
std::string guess_sequence(int N) {
// cout << N << "\n";
string p;
int f = 0;
if(press("XA")==1 && press("YA")==1 && press("BA")==1) f = 0;
else if(press("XB")==1 && press("YB")==1 && press("AB")==1) f = 1;
else if(press("YX")==1 && press("AX")==1 && press("BX")==1) f = 2;
else f = 3;
p += Ss[f];
int cnt = 0;
for(int i=0; i<4; i++) if(i!=f) s[cnt++] = Ss[i];
int sz = 1;
while(sz < N){
string cpy = p;
string a;
// if(sz <= N-10) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// else if(sz <= N-9) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// else if(sz <= N-8) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// if(sz <= N-7) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// else if(sz <= N-6) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// else if(sz <= N-5) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
// else if(sz <= N-4) a = s[rand()%3] + s[rand()%3] + s[rand()%3] + s[rand()%3];
if(sz <= N-3) a = s[rand()%3] + s[rand()%3] + s[rand()%3];
else if(sz <= N-2) a = s[rand()%3] + s[rand()%3];
else if(sz <= N-1) a = s[rand()%3];
// cout << cpy+a << "]\n";
int c = press(cpy+a);
int dif = c - sz;
for(int i=0; i<dif; i++) p += a[i];
// cout << p << ")\n";
sz = c;
}
return p;
}
/*
ABXYBXYBYXBYBYXBYBYXBY
*/
