{
  ofstream outfile("my_data.txt");
  delete gRandom;
  gRandom = new TRandom(123456); // Setting the seed
  for(int i=0; i<1000; ++i){
    double a=gRandom->Gaus(5, 0.5);
    outfile << a << "\n";
    double b=gRandom->Gaus(11, 1) ;
    outfile << b << "\n";
    double c=gRandom->Gaus(17, 0.3);
    outfile << c << "\n";
  }
}