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

struct Point{
  double x;
  double y;
};

void koch(int , struct Point , struct Point);

int main(){
  struct Point a, b;
  int n;

  scanf("%d", &n);
  if(n<0 || n>6) exit(1);

  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, struct Point a, struct Point b){
  struct Point s, t, u;
  double th = 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(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, 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);

  return ;
}

  

