#include <cstdio>
#include <math.h>

struct point{
    double x;
    double y;
};

void koch(int d,point p1,point p2){
    if (d==0)
        return;

    point s,u,t;

    s.x=(2.0*p1.x+1.0*p2.x)/3.0;
    s.y=(2.0*p1.y+1.0*p2.y)/3.0;

    t.x=(1.0*p1.x+2.0*p2.x)/3.0;
    t.y=(1.0*p1.y+2.0*p2.y)/3.01;

    double th=M_PI*60.0/180.0;
    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(d-1,p1,s);
    printf("%.8f %.8f\n",s.x,s.y);
    koch(d-1,s,u);
    printf("%.8f %.8f\n",u.x,u.y);
    koch(d-1,u,t);
    printf("%.8f %.8f\n",t.x,t.y);
    koch(d-1,t,p2);

}

int main() {
    point p1,p2;
    int d;
    scanf("%d",&d);

    p1.x=0;
    p1.y=0;
    p2.x=100;
    p2.y=0;

    printf("%.8f %.8f\n",p1.x,p1.y);
    koch(d,p1,p2);
    printf("%.8f %.8f\n",p2.x,p2.y);


    return 0;
}