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#include <iostream>
#include <string>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int t;
    cin >> t;

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

        if (k == 1) {
            if (n > 2) { cout << "NIE\n"; continue; }
            cout << string("PA", n) << "\n";

        } else if (k == 2) {
            if (n > 4) { cout << "NIE\n"; continue; }
            cout << string("PPAA", n) << "\n";

        } else if (k == 3) {
            if (n > 8) { cout << "NIE\n"; continue; }
            cout << string("PPPAPAAA", n) << "\n";

        } else {
            const char ext[] = "APAAPP";
            string result(n, 'P');
            for (int i = k; i < n; i++) {
                result[i] = ext[(i - k) % 6];
            }
            cout << result << "\n";
        }
    }

    return 0;
}