Help me to understand task (Secret Message)

Question

You are trying to send a secret message, and you've decided to encode it by replacing every letter in your message with its corresponding letter in a backwards version of the alphabet.
What do your messages look like?

Task:
Create a program that replaces each letter in a message with its corresponding letter in a backwards version of the English alphabet.

Input Format:
A string of your message in its normal form.

Output Format:
A string of your message once you have encoded it (all lower case).

Sample Input:
Hello World

Sample Output:
svool dliow

Can anyone describe what does the task mean with corresponding?

Answer 1

The task is to replace every letter of the given string to a letter which will on same position if we read alphabets in reverse order.
Means :-
A will become Z
B will become Y
C will become X
.
.
.
And so on.

Answer 2

Here I will you give some hints first you should make your input small then see what happening in input - output
h - s
e - v
l - o
l - o
Then you see here some logic like a-z ,b-y,c-z ...z-a.

Answer 3

☺️ Thank you very much everyone for help me to understand