unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

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

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var a,b:textfile;
i,k,f:integer;
begin
AssignFile(a,'task.in');
AssignFile(b,'tesk.out');
eof(a,1):=p;
k:=2;
f:=2;
i:=0;
while
if
eoln(eof(a,k+1),f+1)>eoln(eof(a,k),f)<eoln(eof(a,k),f+1)
then
i+1;
else
k+1;
f+1;
end;

end.