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

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

double kock(int , P, P);

int main(){
  int n;
  P start={0,0}, end={100, 0};

  scanf("%d", &n);

  printf("%.8f %.8f\n", start.x, start.y);
  kock(n, start, end);
  printf("%.8f %.8f\n", end.x, end.y);

  return 0;
}

double kock(int n, P p1, P p2){
  if(n == 0)return 0.0;
  P s, t, u;
  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;
  kock(n - 1, p1, s);
  printf("%.8f %.8f\n", s.x, s.y);
  kock(n - 1, s, u);
  printf("%.8f %.8f\n", u.x, u.y);
  kock(n - 1, u, t);
  printf("%.8f %.8f\n", t.x, t.y);
  kock(n - 1, t, p2);
  return 0.0;
}

