First, let's familiarize ourselves with Python's string type:

• Read a string input from the user's console (hint: ''input()''); next sub-tasks will use this value and apply various string transformations on it;
• Print the reversed string (e.g., “hello world” ⇒ “dlrow olleh”); hint: there are at least 3 built-in ways to do this in a single line of code ;)
• Print the same string in “aLtErNaTe CaSe” (if you're out of ideas, simply use the ''for'' loop);
• Finally: encrypt the given message using Caesar's Cipher (aka, replace each of its alphabet letters with the ones n positions to the: right for encryption, left for decryption); use the number 17' for testing!