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


 struct Point {double x,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 n,struct Point p1,struct Point p2){
 struct Point s,u,t;
  double th=M_PI * 60.0/180.0;
  if(n==0)return;
  s.x=(2*p1.x+p2.x)/3.0;
  s.y=(2*p1.y+p2.y)/3.0;
  t.x=(p1.x+2*p2.x)/3.0;
  t.y=(p1.y+2*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(n-1,p1,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,p2);
}

