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

struct Point{
    double x;
    double y;
};

typedef struct Point Point;

void koch(int,Point,Point);

int main(){
    Point a,b;
    int n;

    scanf("%d",&n);

    a.x=0;
    a.y=0;
    b.x=100;
    b.y=0;

    printf("%0.8f %0.8f\n",a.x,a.y);
    
    koch(n,a,b);
    
    printf("%0.8f %0.8f\n",b.x,b.y);

    return 0;
}

void koch(int n,Point a,Point b){
    Point s,t,u;
    double th=M_PI*60/180;

    if(n==0) return;

    s.x=(2*a.x+b.x)/3;
    s.y=(2*a.y+b.y)/3;
    t.x=(a.x+2*b.x)/3;
    t.y=(a.y+2*b.y)/3;
    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);
    printf("%0.8f %0.8f\n",s.x,s.y);
    koch(n-1,s,u);
    printf("%0.8f %0.8f\n",u.x,u.y);
    koch(n-1,u,t);
    printf("%0.8f %0.8f\n",t.x,t.y);
    koch(n-1,t,b);

}
