Playing Card Back Design

In this problem, you are given the top-left quarter of a playing card back design. The quarter consists of (r) rows and (m) columns of characters, each of which is either # or .. The complete design is generated as follows:

1. The given pattern is reflected horizontally along the vertical midline to form the top-right quarter.
2. The entire top half (which now consists of the original left and its mirror right) is then reflected vertically along the horizontal midline to form the bottom half.
3. Finally, a deliberate error is introduced by toggling the character at position ((x,y)) (1-indexed): if the character is #, it is changed to ., and vice versa.

Your task is to output the final card back design, which will be of size (2r \times 2m).

inputFormat

The input consists of several lines:

• The first line contains two integers (r) and (m) ((1 \le r, m \le 100)), representing the number of rows and columns in the given top-left quarter.
• The second line contains two integers (x) and (y) ((1 \le x \le 2r,\ 1 \le y \le 2m)), which specify the position of the character to be toggled in the final design.
• The following (r) lines each contain a string of length (m), representing the top-left quarter of the pattern. Each character is either # or ..

outputFormat

Output the final playing card back design, which is a (2r \times 2m) grid of characters. Each of the (2r) lines should contain a string of length (2m).

sample

1 1
1 1
#

.#
##