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


int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int tt;
	cin>>tt;
	while(tt--) {
		LL n, k;
		cin>>n>>k;
		if(k==1){
			if(n<=2){
				cout<<string("PA").substr(0, n)<<"\n";
			}else{
				cout<<"NIE\n";
			}
		}else if(k==2){
			if(n<=4){
				cout<<string("PPAA").substr(0, n)<<"\n";
			}else{
				cout<<"NIE\n";
			}
		}else if(k==3){
			if(n<=8){
				cout<<string("PPPAPAAA").substr(0, n)<<"\n";
			}else{
				cout<<"NIE\n";
			}
		}else{
			string s="P";
			for(int i=0; i<k-2; i++)s+="A";
			s+="PPA";
			for (int i = 0; i < n; ++i) {
				cout<<s[i%(k+2)];
			}
			cout<<"\n";;
		}
	}
	return 0;
}