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

typedef struct{
	double x,y;
} Point;

int koch(int n,Point p1,Point p2){
	Point s,t,u;
	double degree = M_PI / 3;
	if(n==0) return;
	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(degree) - (t.y - s.y)*sin(degree) + s.x;
	u.y = (t.x - s.x)*sin(degree) + (t.y-s.y)*cos(degree) + s.y;
	koch(n-1,p1,s);
	printf("%.8f %.8f",s.x,s.y);
	koch(n-1,s,u)
	printf("%.8f %.8f",u.x,u.y);
	koch(n-1,u,t);
	printf("%.8f %.8f",t.x,t.y);
	koxh(n-1,t,p2);
	


int main(){
	int n;
	Point a,b;
	
	scanf("%d",&n);
	
	p1.x = 0;
	p1.y = 0;
	p2.x = 100;
	p2.y = 0;
	
	printf("%.8f %.8f\n",p1.x,p1.y);
	koch(n,p1,p2);
	printf("%.8f %.8f\n",p2.x,p2.y);
	
	return 0;
}