How do I CODE a delphi program that determine the total of the first 10 fibonacci numbers

unit Numbers;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

//program Project2;


{$APPTYPE CONSOLE}

{$R *.res}

uses
  System.SysUtils;

var
  I: Integer;

function Fibonacci(aNumber: Integer): Integer;
begin
  {Your implementation goes here}
end;

begin
  for I:=0 to 10 do
    Writeln(Fibonacci(I));
  Readln;
end.