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

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

void koch(int, point, point);

int main(){
  point p1 = {0.0, 0.0}, p2 = {100.0, 0.0};
  int n;

  scanf("%d", &n);

  printf("%f %f\n", p1.x, p1.y);
  koch(n, p1, p2);
  printf("%f %f\n", p2.x, p2.y);
  
  return 0;
}

void koch(int n, point p1, point p2){
  point s, u, t;
  double rad;

  if(n == 0) return;

  rad = M_PI * 60.0 / 180.0;
  s.x = (2.0 * p1.x + p2.x) / 3.0;
  s.y = (2.0 * p1.y + p2.y) / 3.0;
  t.x = (p1.x + 2.0 * p2.x) / 3.0;
  t.y = (p1.y + 2.0 * p2.y) / 3.0;
  u.x = (t.x - s.x) * cos(rad) - (t.y - s.y) * sin(rad) + s.x;
  u.y = (t.x - s.x) * sin(rad) + (t.y - s.y) * cos(rad) + s.y;

  koch(n-1, p1, s);
  printf("%f %f\n", s.x, s.y);
  koch(n-1, s, u);
  printf("%f %f\n", u.x, u.y);
  koch(n-1, u, t);
  printf("%f %f\n", t.x, t.y);
  koch(n-1, t, p2);
}

