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#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define fi first
#define se second
#define lb lower_bound
#define vec vector
using namespace std;
void solve(){
    int n,k;
    cin>>n>>k;
	string s;
	if(k==1){
		if(n>2){cout<<"NIE";return;}
		s="PA";
		cout<<s.substr(0,n);
	}
	if(k==2){
		if(n>4){cout<<"NIE";return;}
		s="PPAA";
		cout<<s.substr(0,n);
	}
	if(k==3){
		if(n>8){cout<<"NIE";return;}
		s="PPPAPAAA";
		cout<<s.substr(0,n);
	}
	if(k>3){
		cout<<string(k,'A');
		s="PAPPAA";
		for(int i=0;i<n-k;i++){
			cout<<s[i%6];
		}
	}
}
int main() {
	ios_base::sync_with_stdio(0);cin.tie(0);
	int t;
	cin>>t;
	while(t--){
		solve();cout<<'\n';
	}
    return 0;
}