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

typedef struct{
  double x,y;
}P;

void koch(int n, P a, P b){
  P s,t,u;
  double th = M_PI * 60.0 /180.0;  
  if(n == 0)return;
  
  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);
}

int main(){
  P a,b;
  int n;

  scanf("%d",&n);
  if(n<0 || n>6){
    printf("nは０から６までにして\n");
    exit(2);
  }
  
  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;
}

