What is the output of the following code

stack mystack;

mystack.push$(2)$;

mystack.push$(0)$;

mystack.push$(4)$;

while $(!$mystack.empty$())\{$ mystack.pop$()$;

cout $<<$ mystack.top$()++$; $\}$

Oh$.402$

Ob$.13$

c$.513$

Od$.02$