#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string solve(string x, string y, string z, string k, int N) {
while (k.size() < N - 1) {
int sz = k.size();
string temp = k + x + x + k + x + y + k + x + z + k + y;
int res = press(temp);
if (res == sz) {
k += z;
} else if (res == sz + 1) {
k += y;
} else if (res == sz + 2) {
k += x;
} else {
// Defensive exit in case of unexpected press result
exit(1);
}
}
string temp = k + x;
if (press(temp) == N) {
return temp;
}
temp = k + y;
if (press(temp) == N) {
return temp;
}
return (k+z);
return "";
}
string guess_sequence(int N) {
string ans;
if (N==1){
if (press("X")==1){return("X");
}
else if (press("A")==1){return("A");
}
else if (press("Y")==1){return("Y");
}
else{
return ("B");
}
}
if (press("AB") >= 1) {
if (press("A") == 1) {
ans = solve("X", "Y", "B", "A", N);
} else {
ans = solve("X", "Y", "A", "B", N);
}
} else {
if (press("X") == 1) {
ans = solve("B", "Y", "A", "X", N);
} else {
ans = solve("X", "B", "A", "Y", N);
}
}
return ans;
}
