program k;

function test(i: integer): integer;

var hlp1, hlp2: integer;
begin
  writeinteger(i);
  if (i > 1) then
  begin
    test := (test(i-1) + test(i-1))
  end
  else
  begin
    test := 1
  end
end;

begin
  writeinteger(test(6))
end.