Comments on functions
Revert "Comments on functions"

This reverts commit aac700a3448cfaaa1b1a82310e2a57d01d834f65.
Revert "Revert "Comments on functions""

This reverts commit 1dfe62365bc3d9d8c5de1a53fd184577d2c696c1.
Add comments and code
Addd
Revert "Addd"

This reverts commit 902eacaf1ab9bbf488e3a10a11fb4b886cbc4eaf.
Revert "Revert "Addd""

This reverts commit d945f1b606e284c8e1177b69c21ee6806af5ffc1.
Revert "Revert "Revert "Addd"""

This reverts commit 6a5b244b3f473de0f00fdced6bb90c2756a0673e.
Add example code, editted comments