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

struct Point{double x,y;};

void koch(int,struct Point ,struct Point);

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

void koch(int n,struct Point a,struct Point b){
    if(n == 0)return;
    struct Point s,t,u;
    double th = M_PI * 60/180;
    
    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);
    printf("%.8f %.8f\n",s.x,s.y);
    koch(n-1,s,u);
    printf("%.8f %.8f\n",u.x,u.y);
    koch(n-1,u,t);
    printf("%.8f %.8f\n",t.x,t.y);
    koch(n-1,t,b);
}
