## Reversed String

Write a function called ```revstring``` that takes a string as input and returns the reversed string.

### Function Signature:
```python
def revstring(x).
    # return your solution
```

#### Requirements
 - The function should return the input string reversed
 - Your function will be tested with various cases, including:
   - An empty string
   - A single character
   - A palindrome ("racecar")
   - A string of numbers ("12345")
   - Special characters
   - A normal string ( "Hello World" )  
  
#### Example:
```python
revstring("Hello World")  # returns "dlroW olleH"
revstring("")             # returns ""
revstring("racecar")      # returns "racecar"
revstring("12345")        # returns "54321"
revstring("!@# $%")       # returns "%$ #@!"
```
You can copy this into your problems solution