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

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

void kock(int d, point p1, point p2) {
	point s, t, u;
	double rad60 = M_PI / 3;
	if (d == 0) return;

	s.x = (2 * p1.x + 1 * p2.x)/3;
	s.y = (2 * p1.y + 1 * p2.y) / 3;
	t.x = (1 * p1.x + 2 * p2.x) / 3;
	t.y = (1 * p1.y + 2 * p2.y) / 3;
	u.x = (t.x - s.x) * cos(rad60) - (t.y - s.y) * sin(rad60) + s.x;
	u.y = (t.x - s.x) * sin(rad60) + (t.y - s.y) * cos(rad60) + s.y;

	kock(d - 1, p1, s);
	printf("%f %f\n", s.x, s.y);
	kock(d - 1, s, u);
	printf("%f %f\n", u.x, u.y);
	kock(d - 1, u, t);
	printf("%f %f\n", t.x, t.y);
	kock(d - 1, t, p2);
}

int main(){
	int n;
	point p1 = {0.0,0.0},p2 = {100.0,0.0};
	scanf("%d",&n);

	printf("%f %f\n", p1.x, p1.y);
	kock(n, p1, p2);
	printf("%f %f\n", p2.x, p2.y);

	return 0;
}

