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

struct Point {double x, y;};

void print(Point p) {printf("%.8f %.8f\n", p.x, p.y);}

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);
	print(s);
	koch(n - 1, s, u);
	print(u);
	koch(n - 1, u, t);
	print(t);
	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;

	print(a);
	koch(n, a, b);
	print(b);
	return 0;
}

