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

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


int kock(int n,Point p1,Point p2)
{
  Point s,t,u;

  if(n == 0)
    {
      return ;
    }
  
  s.x = (2*p1.x + 1*p2.x)/3;
  s.y = (2*p1.y + 1*p2.y)/3;
  t.x = (1*p1.x + 2*p2.x)/3;
  t.y = (1*p1.y + 2*p2.y)/3;
  u.x = (t.x - s.x)*cos(M_PI*60/180) - (t.y - s.y)*sin(M_PI*60/180) + s.x;
  u.y = (t.x - s.x)*sin(M_PI*60/180) + (t.y - s.y)*cos(M_PI*60/180) + s.y;
  
  
  kock(n -1,p1,s);
  printf(" %.8lf %.8lf\n",s.x,s.y);
  kock(n - 1,s,u);
  printf(" %.8lf %.8lf\n",u.x,u.y);
  kock(n - 1,u,t);
  printf(" %.8lf %.8lf\n",t.x,t.y);
  kock(n - 1,t,p2);
  
}

int main()
{
  int n;

  Point P1 = {0,0};
  Point P2 = {100,0};
  

  scanf("%d",&n);
  
  printf(" %.8lf %.8lf\n",P1.x,P1.y);
  kock(n,P1,P2);
  printf(" %.8lf %.8lf\n",P2.x,P2.y);

  return 0;
}

