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

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

void kock(int,p,p);

int main()
{
  int n;
  p p1={0.0,0.0};
  p p2={100.0,0.0};
  scanf("%d",&n);
 printf("%f %f\n",p1.x,p1.y);
  kock(n,p1,p2);
 printf("%f %f\n",p2.x,p2.y);

  return 0;
}
void kock(int n,p p1,p p2)
{
  p s;
  p u;
  p t;

  if(n==0)return ;

  s.x=(2*p1.x+1*p2.x)/3.0;
  s.y=(2*p1.y+1*p2.y)/3.0;
  t.x=(1*p1.x+2*p2.x)/3.0;
  t.y=(1*p1.y+2*p2.y)/3.0;
  u.x=(t.x-s.x)*(1/2)*M_PI-(t.y-s.y)*(sqrt(3.0)/2.0)*M_PI+s.x;
  u.y=(t.x-s.x)*(sqrt(3.0)/2.0)*M_PI+(t.y-s.y)*(1.0/2.0)*M_PI+s.y;
printf("%f %f\n",s.x,s.y);
  kock(n-1,p1,s);
  printf("%f %f\n",s.x,s.y);
  kock(n-1,s,u);
  printf("%f %f\n",u.x,u.y);
  kock(n-1,u,t);

  printf("%f %f\n",t.x,t.y);
  kock(n-1,t,p2);
 
}