#K57822. Magic Square Generator

    ID: 30506 Type: Default 1000ms 256MiB

Magic Square Generator

Magic Square Generator

Given an odd integer \(n\) (i.e., \(n = 1, 3, 5, \dots\)), generate an \(n \times n\) magic square where every row, every column, and both main diagonals have the same sum. The magic constant is given by \(M = \frac{n(n^2+1)}{2}\). Use the Siamese method to fill the square. If the provided integer is even, output the error message: n must be an odd number.

inputFormat

The input consists of a single line containing one integer \(n\), where \(n\) must be an odd number.

outputFormat

If \(n\) is odd, output the magic square in \(n\) lines where each line contains \(n\) space-separated integers. If \(n\) is even, output the error message: n must be an odd number.

## sample
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