Description

The homeroom teacher gives Xiaoyu a task: go to the stationery store and buy as many pens as possible. It is known that the price of one pen is $1$ yuan $9$ jiao, and the homeroom teacher gives Xiaoyu $a$ yuan $b$ jiao. Xiaoyu wants to know the maximum number of pens she can buy.

Input Format

The input contains one line with two integers, representing $a$ and $b$.

Output Format

Output one line with a single integer, the maximum number of pens Xiaoyu can buy.

10 3

5

Hint

Constraints

For all test points, it is guaranteed that $0 \leq a \leq 10^4$, $0 \leq b \leq 9$.

Translated by ChatGPT 5