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

#define int long long
using un = unsigned;
#define dbg(X) cout << __LINE__ <<' ' << X << endl;

void solve()
{
    int n,k;
    cin >> n >> k;
    if(n/2>k)
    {
        cout << "NIE\n";
    }
    else
    {
        cout << string(n-k,'P') << string(k,'A') << '\n';
    }
}

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