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#ifdef DEBUG
#define _GLIBCXX_DEBUG
#endif
//#pragma GCC optimize("O3")
#include<bits/stdc++.h>

using namespace std;

#ifdef DEBUG

#include "lib/debug.h"

#else
#define debug(...) 228
#endif


typedef long long ll;
typedef long double ld;

#define pb push_back
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define F0R(i, a) FOR(i, 0, a)

vector<int> read_vec(int n) {
    vector<int> v(n);
    for (int &t: v) cin >> t;
    return v;
}

template<typename T>
inline void upd_max(T &a, T b) {
    if (a < b) {
        a = b;
    }
}

template<typename T>
inline void upd_min(T &a, T b) {
    if (a > b) {
        a = b;
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
#ifdef DEBUG
    freopen("input.txt", "r", stdin);
#endif
    int tst;
    cin >> tst;
    while (tst--) {
        int n, k;
        cin >> n >> k;
        if (k <= 3) {
            string f;
            if (k == 1) f = "AP";
            else if (k == 2) f = "AAPP";
            else {
                f = "AAAPAPPP";
            }
            if (n <= f.size()) {
                cout << f.substr(0, n) << '\n';
            } else {
                cout << "NIE\n";
            }
        }
        else {
            string t(k, 'A');
            FOR(i, 0, n - k) {
                t += "PAPPAA"[i % 6];
            }
            cout << t << '\n';
        }
    }
    /*
    int mn = 20;
    FOR(i, 0, 1 << 8) {
        string s;
        FOR(x, 0, 8) {
            if ((i >> x) & 1) s += 'A';
            else s += 'P';
        }
        int max_pal = 0;
        FOR(a, 0, 8) {
            FOR(b, a, 8) {
                string f = s.substr(a, b - a + 1);
                string tf(f.rbegin(), f.rend());
                if (f == tf) upd_max(max_pal, b - a + 1);
            }
        }
        if (max_pal == 3) cout << s << '\n';
        upd_min(mn, max_pal);
    }
    cout << mn << '\n';
    */
    return 0;
}