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#include <bits/stdc++.h>
#define N 1000311
#define LOGN 21

using namespace std;

int t;
int n;
int k;
string paparapa = "PAPPAA";

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

    cin >> t;
    while (t--) {
        cin >> n >> k;

        if (k == 1) {
            if (n == 1) {
                cout << "A" << "\n";
            } else if (n == 2) {
                cout << "AP" << "\n";
            } else {
                cout << "NIE" << "\n";
            }
        } else if (k == 2) {
            if (n == 2) {
                cout << "AA" << "\n";
            } else if (n == 3) {
                cout << "AAP" << "\n";
            } else if (n == 4) {
                cout << "AAPP" << "\n";
            } else {
                cout << "NIE" << "\n";
            }
        } else if (k == 3) {
            if (n == 3) {
                cout << "AAA" << "\n";
            } else if (n == 4) {
                cout << "AAAP" << "\n";
            } else if (n == 5) {
                cout << "AAAPA" << "\n";
            } else if (n == 6) {
                cout << "AAAPAP" << "\n";
            } else if (n == 7) {
                cout << "AAAPAPP" << "\n";
            } else if (n == 8) {
                cout << "AAAPAPPP" << "\n";
            } else {
                cout << "NIE" << "\n";
            }
        } else {
            for (int i = 0; i < k; i++) {
                cout << "A";
            }
            for (int i = 0; i < n - k; i++) {
                cout << paparapa[i % 6];
            }
            cout << "\n";
        }
    }

    return 0;
}