A number is considered perfect if its digits sum is exactly 10.

Given a positive integer n,return the n-th perfect number.

for example, given 1,you should return 19. Given 2 you should return 28.

A number is considered perfect if its digits sum is exactly 10.

Given a positive integer n,return the n-th perfect number.

for example, given 1,you should return 19. Given 2 you should return 28.