{ Test input for the
  Plex Pascal scanner }

program spam(input, output);
var
  order: integer;
begin
  write('How many slices of spam would you like with your eggs, sir? ');
  readln(order);
  if order >= 1 then
    writeln('Certainly, sir.')
  else
    writeln('Sorry, sir, invalid order.')
  end
end.