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

typedef struct Point{
  double x;
  double y;
}Point1;

void Koch(int,Point1,Point1);

int main(){
  Point1 a,b;
  int n;

  scanf("%d",&n);

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

  printf("%.8f %.8f\n",a.x,a.y);

  Koch(n,a,b);

  printf("%.8f %.8f\n",b.x,b.y);

  return 0;
}

void Koch(int n,Point1 a,Point1 b){
  Point1 s,t,u;
  double rad = M_PI*60.0/180.0;

  if(n==0) return;

  s.x = (2.0*a.x+1.0*b.x)/3.0;
  s.y = (2.0*a.y+1.0*b.y)/3.0;
  t.x = (1.0*a.x+2.0*b.x)/3.0;
  t.y = (1.0*a.y+2.0*b.y)/3.0;
  u.x = (t.x-s.x)*cos(rad)-(t.y-s.y)*sin(rad)+s.x;
  u.y = (t.x-s.x)*sin(rad)+(t.y-s.y)*cos(rad)+s.y;

  Koch(n-1,a,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,b); 
    
  
}

