#P230. 练38.1 宇宙大爆炸
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ID: 1823
Type: Default
1000ms
64MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
chengweisun
Tags> 练38.1 宇宙大爆炸
Description
The universe begins expanding from the 0th second, expanding one layer per second.
At the 1st second, the shape of the universe is
* |
At the 2nd second, the shape of the universe is
*** *** *** |
………………
Now, please output the shape of the universe at the nth second after the Big Bang.
Input Format
An integer n (1≤n≤100).
Output Format
Output the shape of the universe at the nth second.
Sample
3*****
*****
*****
*****
*****