#include<stdio.h>
#include<math.h>
typedef struct {
	double x;
	double y;
}point;
void koch(int n,point p1,point p2) {
	point s,t,u;
	double sum = M_PI * 60 / 180;
	if (n == 0) return;
	s.x = (2 * p1.x + p2.x) / 3;
	s.y = (2 * p1.y + p2.y) / 3;
	t.x = (p1.x + 2 * p2.x) / 3;
	t.y = (p1.y + 2 * p2.y) / 3;
	u.x = (t.x - s.x) * cos(sum) - (t.y - s.y) * sin(sum) + s.x;
	u.y = (t.x - s.x) * sin(sum) + (t.y - s.y) * cos(sum) + s.y;
	koch(n-1,p1,s);
	printf("%f %f\n",s.x,s.y);
	koch(n-1,s,u);
	printf("%f %f\n",u.x,u.y);
	koch(n-1,u,t);
	printf("%f %f\n",t.x,t.y);
	koch(n-1,t,p2);
}

int main(){
	int k;
	point p1,p2;
	p1.x=0.0;
	p2.x=100.0;
	p1.y=0.0;
	p2.y=0.0;
	scanf("%d",&k);
	printf("%.8f %.8f\n",p1.x,p1.y);
	koch(k,p1,p2);
	printf("%.8f %.8f\n",p2.x,p2.y);
	return 0;
}


