Олимпиадный тренинг

Задача 3956. New number - 1


Задача

Темы: Целые числа
Given a natural three-digit number a. Form a number b such that: the number of hundreds in it would be equal to the sum of the digits of the number of units and tens of the number a, tens in b is equal to 2 times the number of tens in a, and put the number 0 instead of ones.

 
Example 
test number Input Output
1 473 1090