#include <bits/stdc++.h>
#include "combo.h"
#ifdef LOCAL
#include <debug.h>
#else
#define debug(...) 1001
#endif
using namespace std;
#define all(x) x.begin(), x.end()
#define st first
#define nd second
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define pb push_back
#define pob pop_back
#define pf push_front
#define pof pop_front
#define file "TEMPLATE"
typedef long long ll;
typedef pair<int, int> ii;
typedef array<int, 3> iii;
typedef vector<int> vi;
typedef vector<ll> vl;
string z = "ABXY";
string guess_sequence(int n){
string p;
for (int i = 0; i < n; i++){
for (auto x: z){
if (press(p + x) == i + 1){
p.pb(x);
break;
}
}
}
return p;
}
