Objective

Write a program that receives a single string argument and prints it with every letter advanced by one position in the alphabet.

Steps

• The program expects exactly one argument.
• Each lowercase letter is shifted forward by one: a becomes b, y becomes z.
• z wraps around and becomes a. The same wrap applies to uppercase: Z becomes A.
• Uppercase letters shift to the next uppercase letter. Case is preserved.
• Any character that is not a letter is printed unchanged.
• The output is always followed by a newline.
• If the number of arguments is not exactly one, print wrong number of arguments followed by a newline.

Objective

Write a program that receives a single string argument and prints it with every letter advanced by one position in the alphabet.

Steps

• The program expects exactly one argument.
• Each lowercase letter is shifted forward by one: a becomes b, y becomes z.
• z wraps around and becomes a. The same wrap applies to uppercase: Z becomes A.
• Uppercase letters shift to the next uppercase letter. Case is preserved.
• Any character that is not a letter is printed unchanged.
• The output is always followed by a newline.
• If the number of arguments is not exactly one, print wrong number of arguments followed by a newline.