# -*- mode: snippet -*-
# name: Org-Mode header
# key: header
# --
`(let* ((headerlevel (cl-gcd (read-number "What is the header level?: ")))
       (str ""))
(if (= headerlevel 1)
    (setq str (concat str (s-repeat 4 "\n")))
    (setq str (concat str (s-repeat 2 "\n"))))
(setq str (concat str (make-string headerlevel ?*)))
str)` ${1:<HEADER>}

$0