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#include <bits/stdc++.h>
using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int t;
	cin >> t;
	while (t--) {
		int n, k;
		cin >> n >> k;
		if (k == 1) {
			if (n == 1) {
				cout << "A\n";
			}
			else if (n == 2) {
				cout << "PA\n";
			}
			else {
				cout << "NIE\n";
			}
		}
		else if (k == 2) {
			if (n == 2) {
				cout << "AA\n";
			}
			else if (n == 3) {
				cout << "AAP\n";
			}
			else if (n == 4) {
				cout << "AAPP\n";
			}
			else {
				cout << "NIE\n";
			}
		}
		else if (k == 3) {
			if (n == 3) {
				cout << "AAA\n";
			}
			else if (n == 4) {
				cout << "AAAP\n";
			}
			else if (n == 5) {
				cout << "AAAPP\n";
			}
			else if (n == 6) {
				cout << "AAAPPP\n";
			}
			else if (n == 7) {
				cout << "AAAPAPP\n";
			}
			else if (n == 8) {
				cout << "AAAPAPPP\n";
			}
			else {
				cout << "NIE\n";
			}
		}
		else {
			int l = n / 6 + 5;
			vector <char> v;
			for (int i = 0; i < l; i++) {
				v.emplace_back('P');
				v.emplace_back('A');
				v.emplace_back('P');
				v.emplace_back('P');
				v.emplace_back('A');
				v.emplace_back('A');
			}
			for (int i = 0; i < k; i++) {
				cout << 'A';
			}
			for (int i = 0; i < n-k; i++)
				cout << v[i];
			cout << "\n";
		}
	}
}