#441. Numbers with digit sum 6
You get n. How many numbers from 1 to n have a digit sum equal to 6?
### Input
One integer n (1 ≤ n ≤ 10⁵).
### Output
A number.
Examples
Input
68035
Output
210
Input
85871
Output
210
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.