CF919B Perfect Number

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.

A single line with a positive integer $ k $ ( $ 1

A single number, denoting the $ k $ -th smallest perfect integer.

The first perfect integer is $ 19 $ and the second one is $ 28 $ .