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

int t, k, n;

int main(){
	ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	
	cin >> t;
	
	while(t--){
		cin >> n >> k;
		
		if(k == 1){
			if(n > 2) cout << "NIE\n";
			else if(n == 2) cout << "AP\n";
			else cout << "A\n";
		}
		else if(k == 2){
			if(n > 4) cout << "NIE\n";
			else{
				string s = "AAPP";
				cout << s.substr(0, n) << "\n";
			}
		}
		else if(k == 3){
			if(n > 8) cout << "NIE\n";
			else{
				string s = "AAAPAPPP";
				cout << s.substr(0, n) << "\n";
			}
		}
		else{
			n -= k;
			string s = "PAPPAA";
			while(k--) cout << "A";
			while(n >= 6){
				cout << s;
				n -= 6;
			}
			cout << s.substr(0, n) << "\n";
		}
	}
}