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#include<bits/stdc++.h>

using namespace std;

string L[4] = {"", "PA", "PPAA", "PPPAPAAA"};

const string PATTERN = "PAAPAP";

string word(int n, int k) {
	if ((k == 1 && n > 2) || (k == 2 && n > 4) || (k == 3 && n > 8)) {
		return "NIE";
	}
	
	if (n < k) {
		return "NIE";
	}
	
	if (k <= 3) {
		return L[k].substr(0, n);
	}
	
	if (k == 4) {
		int i = 6;
		string s = PATTERN;
		while (i < n) {
			s += PATTERN;
			i += 6;
		}
		return s.substr(0, n);
	}
	
	string wd = "";
	if (k == 5) {
		wd = "PPPP";
	} else {	
		wd = "A";
		for (int i = 1; i < k; i++) {
			wd += "A";
		}
	}

	int i = wd.size();
	
	while (i < n) {
		i += 6;
		wd += PATTERN;
	}
	
	return wd.substr(0, n);
}

int main() {
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(NULL);
	
	int t;
	cin >> t;
	
	for (int i = 0; i < t; i++) {
		int n, k;
		cin >> n >> k;
		
		string w = word(n, k);
		
		cout << w << "\n";
	}
}