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

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

void koch(int n, Point p1, Point p2) {

	if (n == 0) return;

	Point s, t, u;

	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(M_PI / 3) - (t.y - s.y)*sin(M_PI / 3) + s.x;
	u.y = (t.x - s.x)*sin(M_PI / 3) + (t.y - s.y)*cos(M_PI / 3) + s.y;

	koch(n - 1, p1, 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, p2);
}

int main() {
	int n;
	Point a = { 0,0 };
	Point b = { 100,0 };

	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;

}
