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#include <bits/stdc++.h>

using namespace std;

#define ll long long

#define rng(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) rng(i,0,b)

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<vvi> vvvi;

typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<vvl> vvvl;

typedef pair<int,int> ii;

template<class t> using vc=vector<t>;
template<class t> using vvc=vc<vc<t>>;

const int MOD = 998244353;

ll read(){
    ll i;
    cin>>i;
    return i;
}

vi readvi(int n,int off=0,int shift=0){
    vi v(n+shift);
    rep(i,shift)v[i]=0;
    rep(i,n)v[i+shift]=read()+off;
    return v;
}

void YesNo(bool condition, bool do_exit=true) {
    if (condition)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
    if (do_exit)
        exit(0);
}

int main(void ) {
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int t;
    cin >> t;
    rep(_,t) {
        int n,k;
        cin >> n >> k;

        if (k < 4) {
            string s[4] = {"", "AP", "AAPP", "AAAPAPPP"};

            if (n > s[k].length())
                cout << "NIE" << endl;
            else
                cout << s[k].substr(0,n) << endl;
        }
        else {
            string s;
            rep(i,k)
                s += "P";
            string r = "AAPAPP";
            rep(i,(n-k)/r.length())
                s += r;
            s += r.substr(0,(n-k)%r.length());
            cout << s << endl;
        }

    }

    return 0;
}