{
   gSystem->Load("EventSTL");
   TFile myfile("STL.root");

   EventSTL *CC = 0;
   TTree *T = (TTree*)myfile.Get("T");
   T->SetBranchAddress("abc",&CC);

  for (Int_t i = 18; i < 22; i++) {
    T->GetEntry(i);
    CC->VI();
  }
}