Having solved the match issue, Mirko faced another challenging problem. His mom ordered him to read an article about the newest couples on the Croatian show-biz scene in the "Moja Tajna" magazine. The article is written in a very small font size which Mirko cannot read. Luckily, Mirko has a scanner in the closet which will enlarge the article for him.

The article is a matrix of characters with ~R~ rows and ~C~ columns. The characters are letters of the English alphabet, digits and the character . (period). Mirko's scanner supports two parameters, ~ZR~ and ~ZC~. It substitutes each character it scans with a matrix of ~ZR~ rows and ~ZC~ columns, where all entries are equal to the scanned character.

Mirko realized his scanner's software no longer works so he needs your help.

Input Specification

The first row contains four integers, ~R~, ~C~, ~ZR~ and ~ZC~. ~R~ and ~C~ are between ~1~ and ~50~, while ~ZR~ and ~ZC~ are between ~1~ and ~5~.

Each of the following ~R~ rows contains ~C~ characters each, representing the article from "Moja Tajna".

Output Specification

The output should be a matrix of characters with ~R \cdot ZR~ rows and ~C \cdot ZC~ columns, the enlarged article.

Sample Input 1

3 3 1 2
.x.
x.x
.x.

Sample Output 1

..xx..
xx..xx
..xx..

Sample Input 2

3 3 2 1
.x.
x.x
.x.

Sample Output 2

.x.
.x.
x.x
x.x
.x.
.x.