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#include <vector>
#include <algorithm>
#include <iostream>
#include <stack>
#include <cstring>
using namespace std;

int main() {
    int T,n,k;
    cin>>T;
    for(int t=0; t<T; ++t) {
        cin>>n>>k;
        if(k == 1) {
            if(n == 1) cout<<"P"<<endl;
            else if(n == 2) cout<<"PA"<<endl;
            else cout<<"NIE"<<endl;
        }
        else if(k == 2) {
            if(n == 2) cout<<"PP"<<endl;
            else if(n == 3) cout<<"PPA"<<endl;
            else if(n == 4) cout<<"PPAA"<<endl;
            else cout<<"NIE"<<endl;
        }
        else if(k == 3) {
            if(n > 8) cout<<"NIE"<<endl;
            else if(n == 8) cout<<"PPPAPAAA"<<endl;
            else if(n == 7) cout<<"PPPAPAA"<<endl;
            else if(n == 6) cout<<"PPPAPA"<<endl;
            else if(n == 5) cout<<"PPPAP"<<endl;
            else if(n == 4) cout<<"PPPA"<<endl;
            else cout<<"PPP"<<endl;
        }
        else {
            string S = "",s;
            s = "PAPPAA";
            for(int i=0; i<k; ++i) S += "A";
            for(int i=0; i<n-k; ++i) {
                S += s[i % 6];
            }
            cout<<S<<endl;
        }
    }
    
    
    
    
    
    
    
    
    
    
    
    
    return 0;
}