func  main() {
  var n int;
  fmt.Println("Please note that negative interger will be ignore");
  fmt.Printf("How many times u want to run? : ");
  fmt.Scanf("%d", &n);

  if (n>=0) {
  run(n-1);//this is my function
  }else{
//I want to clear screen here
  fmt.Println("Please renter give me a positive number");
main()
}
}