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

typedef struct {
	double x,y;
} Point;

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("%.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 () {
	Point a,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);

	return 0;
}