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

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    long long t;
    cin >> t;
    while (t--) {
        long long n, k;
        cin >> n >> k;
        if (n < 9) {
            if (n == 1 && k == 1) cout << "P\n";
            if (n == 2 && k == 1) cout << "AP\n";
            if (n == 2 && k == 2) cout << "PP\n";
            if (n == 3 && k == 1) cout << "NIE\n";
            if (n == 3 && k == 2) cout << "APP\n";
            if (n == 3 && k == 3) cout << "PPP\n";
            if (n == 4 && k == 1) cout << "NIE\n";
            if (n == 4 && k == 2) cout << "AAPP\n";
            if (n == 4 && k == 3) cout << "APPP\n";
            if (n == 4 && k == 4) cout << "PPPP\n";
            if (n == 5 && k == 1) cout << "NIE\n";
            if (n == 5 && k == 2) cout << "NIE\n";
            if (n == 5 && k == 3) cout << "PAPPP\n";
            if (n == 5 && k == 4) cout << "APPPP\n";
            if (n == 5 && k == 5) cout << "PPPPP\n";
            if (n == 6 && k == 1) cout << "NIE\n";
            if (n == 6 && k == 2) cout << "NIE\n";
            if (n == 6 && k == 3) cout << "APAPPP\n";
            if (n == 6 && k == 4) cout << "PAPPPP\n";
            if (n == 6 && k == 5) cout << "APPPPP\n";
            if (n == 6 && k == 6) cout << "PPPPPP\n";
            if (n == 7 && k == 1) cout << "NIE\n";
            if (n == 7 && k == 2) cout << "NIE\n";
            if (n == 7 && k == 3) cout << "AAPAPPP\n";
            if (n == 7 && k == 4) cout << "APAPPPP\n";
            if (n == 7 && k == 5) cout << "PAPPPPP\n";
            if (n == 7 && k == 6) cout << "APPPPPP\n";
            if (n == 7 && k == 7) cout << "PPPPPPP\n";
            if (n == 8 && k == 1) cout << "NIE\n";
            if (n == 8 && k == 2) cout << "NIE\n";
            if (n == 8 && k == 3) cout << "AAAPAPPP\n";
            if (n == 8 && k == 4) cout << "AAPAPPPP\n";
            if (n == 8 && k == 5) cout << "PPAPPPPP\n";
            if (n == 8 && k == 6) cout << "PAPPPPPP\n";
            if (n == 8 && k == 7) cout << "APPPPPPP\n";
            if (n == 8 && k == 8) cout << "PPPPPPPP\n";
        }
        else {
            if (k < 4) cout << "NIE\n";
            else {
                string s, s2 = "PPAAPA", s3 = "AAPA";
                s += string(k, 'P');
                long long licz = 0;
                while (s.size() < n && licz < 4) {
                    s.push_back(s3[licz]);
                    licz++;
                }
                licz = 0;
                while (s.size() < n) {
                    s.push_back(s2[licz]);
                    licz = (licz + 1) % 6;
                }
                cout << s << "\n";
            }
        }
    }
}