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#include <iostream>
#include <string>

using namespace std;

void solve() {
    int n, k;
    cin >> n >> k;

    if (k == 1) {
        if (n == 1) cout << "P\n";
        else if (n == 2) cout << "PA\n";
        else cout << "NIE\n";
    } else if (k == 2) {
        if (n == 2) cout << "PP\n";
        else if (n == 3) cout << "PPA\n";
        else if (n == 4) cout << "PPAA\n";
        else cout << "NIE\n";
    } else if (k == 3) {
        string s = "PPPAPAAA";
        if (n <= 8) {
            cout << s.substr(0, n) << "\n";
        } else {
            cout << "NIE\n";
        }
    } else {
        string s4 = "PPAPAA";
        for (int i = 0; i < k; ++i) {
            cout << "A";
        }
        for (int i = 0; i < n - k; ++i) {
            cout << s4[i % 6];
        }
        cout << "\n";
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t;
    if (cin >> t) {
        while (t--) {
            solve();
        }
    }
    return 0;
}