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

struct Point{
  double x;
  double y;
};

void koch(int, struct Point, struct Point );


int main(){
  struct Point p1, p2;
  int n;

  scanf("%d", &n);

  p1.x =0;
    p1.y = 0;
  p2.x = 100;
  p2.y=0;

 printf("%.8f %.8f\n", p1.x, p1.y);
 
 koch(n, p1, p2);
 printf("%.8f %.8f\n", p2.x, p2.y);

 return 0;
}
void koch(int d, struct Point p1, struct Point p2){
  struct Point s, t, u;
  double k;

  if(d == 0) return;

  k = M_PI * 60.0 / 180.0;

  s.x = (2.0 * p1.x + 1.0 * p2.x) / 3.0;
  s.y = (2.0 * p1.y + 1.0 * p2.y) / 3.0;
  t.x = (1.0 * p1.x + 2.0 * p2.x) / 3.0;
  t.y = (1.0 * p1.y + 2.0 * p2.y) / 3.0;
  u.x = (t.x - s.x) * cos(k) - (t.y - s.y) * sin(k) + s.x;
  u.y = (t.x - s.x) * sin(k) + (t.y - s.y) * cos(k) + s.y;

  koch(d-1, p1, s);
  printf("%.8f %.8f\n", s.x, s.y);
  koch(d-1, s, u);
  printf("%.8f %.8f\n", u.x, u.y);
  koch(d-1, u, t);
  printf("%.8f %.8f\n", t.x, t.y);
  koch(d-1, t, p2);
}

