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FunC supports both single-line and multi-line comments. Single-line comments start with ;; (double semicolon). Example: 
int x = 1; ;; assigns 1 to x
Multi-line comments begin with {- and end with -}. Unlike other languages, FunC allows nested multi-line comments. Example: 
{- This is a multi-line comment
    {- This is a comment inside a comment -}
-}
Additionally, single-line comments ;; can appear inside multi-line comments, and they take precedence over multi-line comments {- -}. In the following example: 
{-
  Start of the comment

;; This comment’s ending is itself commented out -> -}

const a = 10;

;; This comment’s beginning is itself commented out -> {-

  End of the comment
-}
Here, const a = 10; is inside a multi-line comment and is effectively commented out.
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