Target Practice

Interview

Time limit1sMemory limit128 MB

Summary

Print an n by n square border with an X drawn across the inner grid using asterisks.

Level: Easy2 of 10
Topics: Implementation, Simulation
Solved: No attempts yet

Problem

The Trade Federation is too cheap to buy practice targets for testing the battle droid weapon system. Your job is to write a program that reads an integer specifying the size of a target and prints a target of that size.

A target is a square whose side length is $n$ , with an X drawn across the middle. Its characters are as follows.

The first and last rows are a border: one |, then $n-2$ dash (minus sign) - characters, then one |.
Each of the middle $n-2$ rows is one |, then $n-2$ inner characters, then one |.
In the inner $(n-2)\times(n-2)$ grid, index the rows and columns from $0$ . A cell holds * if it lies on either diagonal (row == col, or row + col == $n-3$ ), and a space otherwise. This forms the X.

The following is a target of size $7$ .

|-----|
|*   *|
| * * |
|  *  |
| * * |
|*   *|
|-----|

Input

A single odd integer greater than $1$ .

Output

The target of the appropriate size.

Examples1

Example 1

Input

Expected output

|-------|
|*     *|
| *   * |
|  * *  |
|   *   |
|  * *  |
| *   * |
|*     *|
|-------|