A1039 | The CowSignal

Bessie and her cow friends are playing as their favorite cow superheroes. Of
course, everyone knows that any self-respecting superhero needs a signal to
call them to action. Bessie has drawn a special signal on a sheet of $M \times
N$ paper ($1 \leq M \leq 10, 1 \leq N \leq 10$), but this is too small, much
too small! Bessie wants to amplify the signal so it is exactly $K$ times
bigger ($1 \leq K \leq 10$) in each direction.
The signal will consist only of the '.' and 'X' characters.

The first line of input contains $M$, $N$, and $K$, separated by spaces.
The next $M$ lines each contain a length-$N$ string, collectively describing
the picture of the signal.

You should output $KM$ lines, each with $KN$ characters, giving a picture of
the enlarged signal.