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

struct p
{
	double x;
	double y;
} typedef point;

double sin60;
double cos60;

void koch(int d, point p1, point p2)
{
	point s, u, t;
	
	if(d == 0)
	{
		printf("%.8f %.8f\n", p2.x, p2.y);
		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) * cos60 - (t.y - s.y) * sin60 + s.x;
	u.y = (t.x - s.x) * sin60 + (t.y - s.y) * cos60 + s.y;
	
	koch(d - 1, p1, s);
	koch(d - 1, s, u);
	koch(d - 1, u, t);
	koch(d - 1, t, p2);
}

int main()
{
	int d;
	point p1, p2;
	
	p1.x = 0;
	p1.y = 0;
	p2.x = 100;
	p2.y = 0;
	scanf("%d", &d);
	
	sin60 = sin(M_PI / 3);
	cos60 = cos(M_PI / 3);
	printf("%.8f %.8f\n", p1.x, p1.y);
	koch(d, p1, p2);
	printf("%.8f %.8f\n", p2.x, p2.y);
	
	return 0;
}