#include <stdio.h>
#include <math.h>

struct P{ 
    double x, y;
    
};
 
void koch(int n, P a, P b){
  if(n == 0)
      return;
  P s, t, u;
  double th = M_PI * 60.0/ 180.0;
  s.x = (2.0 * a.x +1.0*b.x) / 3.0;
  s.y = (2.0 * a.y +1.0 *b.y) / 3.0;
  t.x = (1.0 * a.x +2.0*b.x) / 3.0;
  t.y = (1.0 * a.y +2.0 *b.y) / 3.0;
  u.x = (t.x - s.x)*cos(th) - (t.y - s.y)* sin(th) + s.x;
  u.y = (t.x - s.x)*sin(th) + (t.y - s.y)* cos(th) + s.y;

 koch(n-1, a, s);
 printf("%.8f %.8f\n", s.x, s.y);
 koch(n-1, s, u);
 printf("%.8f %.8f\n", u.x, u.y);
 koch(n-1, u, t);
 printf("%.8f %.8f\n", t.x, t.y);
 koch(n-1, t, b);

}

int main(){
  P a, b;
  int n;
  scanf("%d", &n);
  
  a.x = 0;
  a.y = 0;
  b.x = 100;
  b.y = 0;
 
  printf("%.8f %.8f\n", a.x, a.y);
  koch(n, a, b);
  printf("%.8f %.8f\n", b.x, b.y);

  return 0;
}






