Description: We consider a positive integer perfect, if and only if the sum of its digits is exactly $$$10$$$. Given a positive integer $$$k$$$, your task is to find the $$$k$$$-th smallest perfect positive integer. Input Format: A single line with a positive integer $$$k$$$ ($$$1 \leq k \leq 10\,000$$$). Output Format: A single number, denoting the $$$k$$$-th smallest perfect integer. Note: The first perfect integer is $$$19$$$ and the second one is $$$28$$$.