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

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

void koch(int n,Point a,Point b)
{
	if(n==0)
	{
		return;
	}
	Point s,t,u;
	double th =M_PI * 60.0 / 180.0;

	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);
}

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

	scanf("%d",&n);

	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);
}

