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

#define M_PI 3.14159265358979323846

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

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

	s.x = (2 * a.x + 1 * b.x) / 3;
	s.y = (2 * a.y + 1 * b.y) / 3;
	t.x = (1 * a.x + 2 * b.x) / 3;
	t.y = (1 * a.y + 2 * b.y) / 3;
	u.x = (t.x - s.x)*cos(rad) - (t.y - s.y)*sin(rad) + s.x;
	u.y = (t.x - s.x)*sin(rad) + (t.y - s.y)*cos(rad) + 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()
{
	int n;
	Point a = { 0.0, 0.0 };
	Point b = { 100.0, 0.0 };

	scanf("%d", &n);

	printf("%.8f %.8f\n", a.x, a.y);
	koch(n, a, b);
	printf("%.8f %.8f\n", b.x, b.y );
	return 0;
}

