Spiral Matrix Generation

Given an integer \( n \), generate an \( n \times n \) matrix filled with consecutive integers from \(1\) to \(n^2\) arranged in a spiral order (clockwise starting from the top-left corner). If \( n \) is non-positive, output nothing.

Each row of the matrix should be displayed on a separate line with the numbers separated by a single space.

inputFormat

The input consists of a single integer \( n \) provided via standard input.

outputFormat

Output the spiral matrix with each row on a new line and numbers separated by a space. If \( n \) is non-positive, do not output anything.

3

1 2 3
8 9 4
7 6 5