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

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

double kock(int, P, P);

int main(){
    
    int n;
    P p1 = {0.0, 0.0}, p2 = {100.0, 0.0};
    
    scanf("%d", &n);
    
    printf("%f %f\n", p1.x, p1.y);
    
    kock(n, p1, p2);
    
    printf("%f %f\n", p2.x, p2.y);
    
    return 0;
}

double kock(int n, P p1, P p2){
    
    P s, t, u;
    
    if(n == 0) return 0;
    
    s.x = (p1.x * 2 + p2.x * 1 ) / 3;
    s.y = (p1.y * 2 + p2.y * 1) / 3;
    t.x = (p1.x * 1 + p2.x * 2) / 3;
    t.y = (p1.y * 1 + p2.y * 2) / 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;
    
    kock(n-1, p1, s);
    printf("%f %f\n", s.x, s.y);
    kock(n-1, s, u);
    printf("%f %f\n", u.x, u.y);
    kock(n-1, u, t);
    printf("%f %f\n", t.x, t.y);
    kock(n-1, t, p2);
}