2-3-4从数字列表生成树

I have the list of numbers 50,40,60,30,70. Lets assume I would like to insert these to an empty 2-3-4 Tree. Which one of these numbers would be the parent root of the tree and why? Is it the insertion order, is it how big the number is? I would like to be able to draw 234Tree when I'm giving a list of numbers. I can't seem to do that because I don't know which one to use as a parent root to start with. Simply, what factor specifies the parent root of this tree.I have the list of numbers 50,40,60,30,70. Lets