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

struct Point { double x, y; };

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