Need help with code in c$.$ Can you make the output for each question look like this:

Sample output:

Problem $2$:

Input a string: Madam, I$\text{'}$m Adam.

Letters: MadamImAdam

Uppercase: MADAMIMADAM

It's a palindrome

Problem $3$:

Make sure all the correct values are accurately printed.

Problem $4$:

Input a: cat

Input b: dog

Input c: concatenate