Question: The points is from a certain input for example "Hello World" I need to print each character(case-sensitive) is repeated twice.
It should look like this "HHeelllloo WWoorrlldd".

Thanks for the help

Answer: 
This works great and is readable.

```
string = "Hello World"
final = ""
for char in string:
   final += char*2

```
Try this:

```
inp = input()
print(''.join(c + c for c in inp))

```