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

typedef struct{
  double x,y;
}point;

void Koch(int n,point p1,point p2){
  point 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)/2 - (t.y - s.y)/2*(sqrt(3)) + s.x;
  u.y = (t.x - s.x)/2*(sqrt(3)) + (t.y - s.y)/2 + s.y;
  Koch(n-1,p1,s);
  printf("%lf %lf\n",s.x,s.y);
  Koch(n-1,s,u);
  printf("%lf %lf\n",u.x,u.y);
  Koch(n-1,u,t);
  printf("%lf %lf\n",t.x,t.y);
  Koch(n-1,t,p2);
}


int main(){
  int i,n;
  point p1 = {0.00000000,0.00000000};
  point p2 = {100.00000000,0.00000000};
  scanf("%d",&n);
  printf("%lf %lf\n",p1.x,p1.y);
  Koch(n,p1,p2);
  printf("%lf %lf\n",p2.x,p2.y);
  return 0;
}

