#include<stdio.h>
#include<math.h>
 
typedef struct{
  float x;
  float y;
}Koch;
 
void kochCurve(int, Koch, Koch);//????????????????????£?¨?
 
int main(void){
  int n;
  Koch p1, p2;
 
  p1.x = 0;
  p1.y = 0;
 
  p2.x = 100;
  p2.y = 0;
 
  scanf("%d", &n);
 
  printf("%f %f\n", p1.x, p1.y);
  kochCurve(n, p1, p2);
  printf("%f %f\n", p2.x, p2.y);
 
  return 0;
}
 
void kochCurve(int n, Koch p1, Koch p2){ //ToKoch
  Koch s, t, u;
 
  if(n == 0) return;
 
  s.x = (p2.x - p1.x)/3 + p1.x;
  s.y = (p2.y - p1.y)/3 + p1.y;
  t.x = 2*(p2.x - p1.x)/3 + p1.x;
  t.y = 2*(p2.y - p1.y)/3 + p1.y;
  u.x = (t.x - s.x)/2 + s.x - sqrt(3)/2 * (t.y - s.y);
  u.y = (t.y - s.y)/2 + s.y + sqrt(3)/2 * (t.x - s.x);
 
//p1 to s
  kochCurve(n - 1, p1, s);
  printf("%f %f\n", s.x, s.y);
 
//s to u
  kochCurve(n - 1, s, u);
  printf("%f %f\n",u.x, u.y);
 
//u to t
  kochCurve(n - 1, u, t);
  printf("%f %f\n",t.x, t.y);
 
//t to p2
  kochCurve(n - 1, t, p2);
}