simple-fun-number-176-reverse-letter

Simple Fun #176: Reverse Letter

Given a string str, reverse it omitting all non-alphabetic characters.

Example

For str = "krishan", the output should be "nahsirk".

For str = "ultr53o?n", the output should be "nortlu".

Input/Output

• [input] string str

A string consists of lowercase latin letters, digits and symbols.

• [output] a string