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#include <iostream>

using namespace std;

int debug = 1;

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

    int n;
    int a, b;

    cin >> n;

    for (int i = 0; i < n; i++) {
        cin >> a;
        cin >> b;
        int r = int(a / 2) + (a % 2 == 1 ? 1 : 0);
        if (b < r) {
            cout << "NIE" << endl;
        } else {
            for (int j = 0; j < r; j++) {
                cout << "A";
            }
            for (int j = r; j < a; j++) {
                cout << "P";
            }
            cout << endl;
        }

    }

    return 0;
}