Magnified Magazine

You are given a magazine with r rows and c columns, and a magnifier with parameters zr and zc. The magnifier transforms each character into a zr \times zc matrix by replicating it zr times vertically and zc times horizontally.

Your task is to output the magnified image of the magazine.

Note: All formulas are in \( \LaTeX \) format. For example, the parameters are given as \( r \), \( c \), \( zr \), and \( zc \), and the replicated matrix has dimensions \( zr \times zc \).

inputFormat

The first line of input contains four integers: r, c, zr, and zc.

Each of the next r lines contains a string of c characters representing a row of the magazine.

outputFormat

Output the image of the magazine after applying the magnifier. Each row of the original magazine is expanded as follows: each character is repeated zc times horizontally, and then the entire row is repeated zr times vertically.

sample

2 2 2 3
ab
cd

aaabbb
aaabbb
cccddd
cccddd