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

typedef struct{
  double x,y;
}Point;

void koch(int,Point,Point);

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

  scanf("%d",&n);

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

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

  koch(n,a,b);

  printf("%f %f\n",b.x,b.y);
  return 0;
}

void koch(int n,Point a,Point b){
  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("%f %f\n",s.x,s.y);
  koch(n-1,s,u);
  printf("%f %f\n",u.x,u.y);
  koch(n-1,u,t);
  printf("%f %f\n",t.x,t.y);
  koch(n-1,t,b);
}