Ri Matrix Pattern

Little Yang wants to construct an $N\times N$ Ri Matrix (with $N$ being an odd number). The matrix has $N$ rows and $N$ columns. In each row, the first and the last characters are always |. For the first row, the last row, and the middle row (i.e. the $\frac{N+1}{2}$-th row), the characters from the 2nd to the $(N-1)$-th positions are -. All the remaining positions are filled with the lowercase letter x.

For example, when $N=5$, the matrix is:

|---|
|xxx|
|---|
|xxx|
|---|

inputFormat

A single integer $N$ (an odd number) representing the size of the matrix.

outputFormat

Print the $N\times N$ Ri matrix as described. Each row should be printed on a new line.

sample

3

|-|
|-|
|-|