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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define vc vector
#define st first
#define nd second
#define all(a) a.begin(), a.end()
#define sz(a) (ll)a.size()
#define pub push_back
#define pob pop_back

void out(ll n, string s) {
	if (n > sz(s)) {
		cout << "NIE\n";
		return;
	}
	for (ll i = 0; i < n; i++)
		cout << s[i];
	cout << "\n";
}

void program() {
	ll n, k;
	cin >> n >> k;
	if (k == 1)
		out(n, "PA");
	if (k == 2)
		out(n, "PPAA");
	if (k == 3)
		out(n, "PPPAPAAA");
	if (k <= 3)
		return;

	for (ll i = 0; i < k; i++)
		cout << "P";
	string str = "APAAPP";
	for (ll i = 0; i < n - k; i++)
		cout << str[i % 6];
	cout << "\n";
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
	ll t;
	cin >> t;
	while (t--)
		program();
	return 0;
}