cout << " >>>>>>> Reading from  arrt.ppf  <<<<< " << endl;
  PInPersist pis("arrt.ppf");
  TArray<int_4> iaa, ibb, icc;
  // We read the three arrays from the stream
  pis >> iaa >> ibb >> icc;
  cout << " ----- Array IAA = \n " << iaa << endl;
  cout << " ----- Array IBB = \n " << ibb << endl;
  cout << " ----- Array ICC = \n " << icc << endl;
  icc = 12;
  cout << " ----- Array ICC (=12) = \n " << icc << endl;
  cout << " ----- Array IAA (ICC=12) = \n " << iaa << endl;