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

void solve(){
    int n, k; cin >> n >> k;
    if(k == 1){
        cout << (n < 3 ? (n == 1 ? "A\n" : "PA\n") : "NIE\n");
        return;
    }
    if(k == 2){
        if(n == 2) cout << "AA\n";
        else if(n == 3) cout << "PAA\n";
        else if(n == 4) cout << "PPAA\n";
        else cout << "NIE\n";
        return;
    }
    if(k == 3){
        if(n > 8){
            cout << "NIE\n";
            return;
        }
        string s = "AAAPAPPP";
        for(;s.size() > n;) s.pop_back();
        cout << s << '\n';
        return;
    }
    string s = "";
    for(;s.size() < k;) s += 'P';
    for(;s.size()+6 <= n;) s += "AAPAPP";
    if(s.size() < n) s += 'A';
    if(s.size() < n) s += 'A';
    if(s.size() < n) s += 'P';
    if(s.size() < n) s += 'A';
    if(s.size() < n) s += 'P';
    cout << s << '\n';
}

int main(){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int t = 1; cin >> t;
    for(;t--;) solve();
}