Sort letters in alphabetical order
Sort the letters of a given string in alpabetical order.
Sample Code:
def sortLetter(str):
// Enter your logic here...
Examples:
Input: 'codetisan'
Output: 'acdeinost'
Explanation: The letters of the output are sorted in alphabetical order.
Input: 'letter'
Output: 'eelrtt'
Explanation: The letters of the output are sorted in alphabetical order.
