#include "library.h"


void draw_line(const double len)
{ if (len <= 1.0)
    draw_distance(len);
  else
  { draw_line(len / 3);
    turn_left_by_degrees(90);
    draw_line(len / 3);
    turn_right_by_degrees(90);
    draw_line(len / 3);
    turn_right_by_degrees(90);
    draw_line(len / 3);
    turn_left_by_degrees(90);
    draw_line(len / 3); } }

void main()
{ make_window(700, 700);
  set_pen_color(color::red);
  move_to(180, 100);
  set_heading_degrees(90);
  draw_line(250);
  turn_right_by_degrees(90);
  draw_line(250);
  turn_right_by_degrees(90);
  draw_line(250);
  turn_right_by_degrees(90);
  draw_line(250);
  turn_right_by_degrees(90); }