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

#ifdef LOCAL
#include "debug.cpp"
#else
#define debug(x...)
#endif

void solve() {
    int n, k;
    cin >> n >> k;
    if (k == 1) {
        if (n == 1) {
            cout << "A\n";
            return;
        } else if (n == 2) {
            cout << "AP\n";
            return;
        } else {
            cout << "NIE\n";
            return;
        }
    } else if (k == 2) {
        if (n == 2) {
            cout << "PP\n";
            return;
        } else if (n == 3) {
            cout << "PAA\n";
            return;
        } else if (n == 4) {
            cout << "PPAA\n";
            return;
        } else {
            cout << "NIE\n";
            return;
        }
    } else if (k == 3) {
        if (n == 3) {
            cout << "PPP\n";
            return;
        } else if (n == 4) {
            cout << "PAAA\n";
            return;
        } else if (n == 5) {
            cout << "PAPPP\n";
            return;
        } else if (n == 6) {
            cout << "PAPAAA\n";
            return;
        } else if (n == 7) {
            cout << "PPAPAAA\n";
            return;
        } else if (n == 8) {
            cout << "PPPAPAAA\n";
            return;
        } else {
            cout << "NIE\n";
            return;
        }
    } 

    string ans = "";
    for (int i = 0; i < k; i++) ans += 'P';
    string pattern = "APAAPP";
    while (ans.size() < n) {
        for (int i = 0; i < pattern.size() && ans.size() < n; i++) {
            ans += pattern[i];
        }
    }
    
    cout << ans << '\n';
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int t;
    cin >> t;
    while (t--) solve();
}