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

typedef struct{
    double x;
    double y;
}P;

void koch(int,P,P);

int main(){
    int n;
    
    P p1 = {0,0},p2 = {100,0};
    
    scanf("%d",&n);
    
    printf("%.8f %.8f\n",p1.x,p1.y);
    
    koch(n,p1,p2);
    
    printf("%.8f %.8f\n",p2.x,p2.y);
    
    return 0;
}
void koch(int n,P p1,P p2){
    P s,t,u;
    
    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(M_PI / 3) - (t.y - s.y) * sin(M_PI / 3) + s.x;
    u.y = (t.x - s.x) * sin(M_PI / 3) + (t.y - s.y) * cos(M_PI / 3) + s.y;
    
    koch(n - 1,p1,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,p2);
}
