Almost Rectangle

2000ms

262144K

Description:

There is a square field of size $$$n \times n$$$ in which two cells are marked. These cells can be in the same row or column.

You are to mark two more cells so that they are the corners of a rectangle with sides parallel to the coordinate axes.

For example, if $$$n=4$$$ and a rectangular field looks like this (there are asterisks in the marked cells):

$$$$$$ \begin{matrix} . & . & * & . \\ . & . & . & . \\ * & . & . & . \\ . & . & . & . \\ \end{matrix} $$$$$$

Then you can mark two more cells as follows

$$$$$$ \begin{matrix} * & . & * & . \\ . & . & . & . \\ * & . & * & . \\ . & . & . & . \\ \end{matrix} $$$$$$

If there are several possible solutions, then print any of them.

Input:

The first line contains a single integer $$$t$$$ ($$$1 \le t \le 400$$$). Then $$$t$$$ test cases follow.

The first row of each test case contains a single integer $$$n$$$ ($$$2 \le n \le 400$$$) — the number of rows and columns in the table.

The following $$$n$$$ lines each contain $$$n$$$ characters '.' or '*' denoting empty and marked cells, respectively.

It is guaranteed that the sums of $$$n$$$ for all test cases do not exceed $$$400$$$.

It is guaranteed that there are exactly two asterisks on the field. They can be in the same row/column.

It is guaranteed that the solution exists.

Output:

For each test case, output $$$n$$$ rows of $$$n$$$ characters — a field with four asterisks marked corresponding to the statements. If there multiple correct answers, print any of them.

Sample Input:

6
4
..*.
....
*...
....
2
*.
.*
2
.*
.*
3
*.*
...
...
5
.....
..*..
.....
.*...
.....
4
....
....
*...
*...

Sample Output:

*.*.
....
*.*.
....
**
**
**
**
*.*
*.*
...
.....
.**..
.....
.**..
.....
....
....
**..
**..

Informação

Provedor Codeforces

Código CF1512B