Background

Since arriving in the Southern Barbarian territory, Kongming has not only subdued Meng Huo completely but also discovered the wisdom of many minority groups. He found that the totems of these minorities often exhibit a fractal effect. After receiving teachings from the chieftain, Kongming has mastered many drawing techniques, but he is particularly unable to draw their totems. Therefore, he sought help from your great-great-great-great-grandfather... As a good great-great-great-great-grandson... can you do it?

Problem Description

Given a positive integer \( n \), output the corresponding graphic as shown in the sample output.

Input Format

Each input consists of a single positive integer \( n \), representing the size of the totem (this size is not the actual size).

Output Format

Output the totem of this size.

Sample Input and Output

Sample Input #1

2

Sample Output #1

   /\
  /__\
 /\  /\
/__\/__\

Sample Input #2

3

Sample Output #2

       /\
      /__\
     /\  /\
    /__\/__\
   /\      /\
  /__\    /__\
 /\  /\  /\  /\
/__\/__\/__\/__\

Notes

The data guarantees that \( 1 \leq n \leq 10 \).

见题面 Input 部分

见题面 Output 部分