We want to expose 3 services to our client

We want a service that takes a word and returns the reverse of that string

Examples :

Input : RAGNAR
Output: RANGAR

We want a service that takes a word and returns character that has the minimum ASCII value

Examples :

Input : Dexter
Output: D

Input : heisenberg
Output: b

We want a service that takes a word and transforms it based on the rules below :

• Every lower case letter becomes an upper case letter
• Every upper case letter becomes a lower case letter

Examples :

Input : Jon Snow
Output: jON sNOW

Input : ThAnOs
Output: tHaNoS

The client enter a string and automatically print the result of every service.