Given a string s, reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

 
Example 1:

```
Input: s = "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"
```

Example 2:

```
Input: s = "God Ding"
Output: "doG gniD"
```

 

Constraints:

    1 <= s.length <= 5 * 104
    s contains printable ASCII characters.
    s does not contain any leading or trailing spaces.
    There is at least one word in s.
    All the words in s are separated by a single space.