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#include <iostream>
#include <string>

using namespace std;

class Majster {
public:
    void rozkminka(int n, int 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 == 3) cout << "PPP" << endl;
            else if (n == 4) cout << "PPPA" << endl;
            else if (n == 5) cout << "PPPAA" << endl;
            else if (n == 6) cout << "PPPAAA" << endl;
            else if (n == 7) cout << "PPAPAAA" << endl;
            else if (n == 8) cout << "PPPAPAAA" << endl;
            else cout << "NIE" << endl;
        }
        else {
            for (int i = 0; i < k; ++i) {
                cout << "P";
            }

            string pattern = "AAPAPP";

            for (int i = 0; i < n - k; ++i) {
                cout << pattern[i % 6];
            }
            cout << endl;
        }
    }
};

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

    int t;
    if (cin >> t) {
        Majster majster;

        while (t--) {
            int n, k;
            cin >> n >> k;
            majster.rozkminka(n, k);
        }
    }

    return 0;
}