Problems
Bowl for snowflakes
Bowl for snowflakes
Given a positive integer n, print an image that has n rows and 2 * n - 1 columns, formed by the symbols snail, '*' and space, as shown in example.
Input data
One positive integer n (n > 1).
Output data
Print the image n * (2 * n - 1).
Examples
Input example #1
5
Output example #1
@*******@ @*****@ @***@ @*@ @