The Letter X
Print an N×N grid drawing an X: cells on either diagonal are *, everything else ..
Input: one integer N.
Output: the figure, one row per line.
Constraints:
- 1 ≤ N ≤ 100
Sample Tests
Input 1
5
Output 1
*...* .*.*. ..*.. .*.*. *...*
Input 2
1
Output 2
*
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