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#include <bits/stdc++.h>
using namespace std;

vector<vector<string>> small = {
    {"A\n"},
    {"AP\n", "AA\n"},
    {"NIE\n", "AAP\n", "AAA\n"},
    {"NIE\n", "AAPP\n", "AAAP\n", "AAAA\n"},
    {"NIE\n", "NIE\n", "AAAPA\n", "AAAAP\n", "AAAAA\n"},
    {"NIE\n", "NIE\n", "AAAPAP\n", "AAAAPA\n", "AAAAAP\n", "AAAAAA\n"},
    {"NIE\n", "NIE\n", "AAAPAPP\n", "AAAAPAP\n", "AAAAAPA\n", "AAAAAAP\n", "AAAAAAA\n"},
    {"NIE\n", "NIE\n", "AAAPAPPP\n", "AAAAPAPP\n", "AAAAAPAP\n", "AAAAAAPA\n", "AAAAAAAP\n", "AAAAAAAA\n"}
};
vector<string> endings = {"\n", "P\n", "PA\n", "PAP\n", "PAPP\n", "PAPPA\n"};

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

    int t;
    cin >> t;
    while(t--) {
        int n, k;
        cin >> n >> k;
        if(n < 9)
            cout << small[n-1][k-1];
        else if(k < 4)
            cout << "NIE\n";
        else {
            for(int i=0; i<k; i++)
                cout << "A";
            int left = n-k;
            while(left >= 6) {
                cout << "PAPPAA";
                left -= 6;
            }
            cout << endings[left];
        }
    }

    return 0;
}