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

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

void kock(int,xy,xy);

int main(){
  xy p1 = {0.0, 0.0},p2 = {100.0, 0.0};
  int n;
  
  scanf("%d",&n);
  if(n < 0 || n > 6)return 0;
  
  printf("%.8lf %.8lf\n",p1.x,p1.y);
  
  kock(n,p1,p2);
  
  printf("%.8lf %.8lf\n",p2.x,p2.y);
    
  return 0;
}

void kock(int n,xy p1,xy p2){
    xy s,t,u;
  
  if(n == 0)return;
  
  s.x = (2*p1.x + p2.x)/3;
  s.y = (2*p1.y + p2.y)/3;
  t.x = (p1.x + 2*p2.x)/3;
  t.y = (p1.y + 2*p2.y)/3;
  u.x = (t.x - s.x)*cos(M_PI / 3) - (t.y -s.y)*sin(M_PI / 3) + s.x;
  u.y = (t.x - s.x)*sin(M_PI / 3) + (t.y -s.y)*cos(M_PI / 3) + 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);
}

