Problem Statement

Three dogs (Are there three dogs or one dog?) is a code snippet used to illustrate the lettercase sensitivity of the programming language. For a case-sensitive language, the identifiers dog, Dog and DOG are all different and we should get the output: For a language that is lettercase insensitive, we get the following output:

Let's start with the solution:

(let (dog "Benjamin"  Dog "Samba"  DOG "Bernie")
   (prinl "The three dogs are named " dog ", " Dog " and " DOG) )