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

int t, n, k;


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

  cin>>t;

  while(t--) {
    cin >> n >> k;
    if(k == 1) {
      if(n == 1) {
        cout << "P\n";
      }
      else if(n==2) {
        cout << "PA\n";
      }
      else {
        cout << "NIE\n";
      }
    }
    else if (k == 2) {
      if(n==2) {
        cout << "PP\n";
      }
      else if(n==3) {
        cout << "PPA\n";
      }
      else if (n==4) {
        cout << "PPAA\n";
      }
      else {
        cout << "NIE\n";
      }
    }
    else if (k == 3) {
      if(n==3) {
        cout << "PPP\n";
      }
      else if(n==4) {
        cout << "PPPA\n";
      }
      else if (n==5) {
        cout << "PPPAA\n";
      }
      else if (n==6) {
        cout << "PPPAPA\n";
      }
      else if (n==7) {
        cout << "PPPAPAA\n";
      }
      else if (n==8) {
        cout << "PPPAPAAA\n";
      }
      else {
        cout << "NIE\n";
  
      }
    }
    else if (n == k) {
      string res = "";
      for(int i = 0; i < n; i++) {
        res += "P";
      }
      cout << res << "\n";
    }
    else if (n == k + 1) {
      string res = "";
      for(int i = 0; i < n; i++) {
        if(i == 0) {
          res += "P";
        }
        else {
          res += "A";
        }
      }
      cout << res << "\n";
    }
    else {
      string pattern = "PPAPAA";
      string res = "";
      while(res.size() < n) {
        res += pattern;
      }
      while(n - (int)res.size() + 2 < k){
        res.pop_back();
      }
      reverse(res.begin(), res.end());
      while(res.size() < n) {
        res += "P";
      }
      cout << res << "\n";
    }
  }
}