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

int t;
int n, k;

void solve() {
    cin >> n >> k;
    
    if (k == 1) {
        if (n <= 2) {
            if (n == 1) cout << "A\n";
            else cout << "AP\n";
        } else {
            cout << "NIE\n";
        }
    } else if (k == 2) {
        if (n <= 4) {
            string s = "AAPP";
            cout << s.substr(0, n) << "\n";
        } else {
            cout << "NIE\n";
        }
    } else {
        string out = "";
        for (int i=0; i<k; i++) out += 'A';
        char next = 'P';
        
        while (out.length() < n) {
            out += next;
            if (next == 'P') next = 'A';
            else next = 'P';
        }
        
        cout << out << "\n";
    }
}

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