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

typedef struct{
  double x;
  double y;
}Point;

void koch(int,Point,Point);
void zahyou(Point,Point,Point,Point,Point);
void print(Point);


int main()
{
  Point a,b;
  int n;

  scanf("%d",&n);

  a.x = 0;
  a.y = 0;
  b.x = 100;
  b.y = 0;

  print(a);
  koch(n,a,b);
  print(b);

  return 0;
}

void koch(int d,Point p1,Point p2)
{
  Point s,t,u;
  double th;

  
  if(d==0) return;

  th = 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(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(d-1,p1,s);
  print(s);
  koch(d-1,s,u);
  print(u);
  koch(d-1,u,t);
  print(t);
  koch(d-1,t,p2);
}


void print(Point p)
{
  printf("%.8f %.8f\n",p.x,p.y);
}
  

