Source

This problem is adapted from Long Long OJ. All rights reserved.

Problem Description

In country X, the first day of August is represented as day $a$ ($1\le y\le 10^{18}$). What is the representation of the Mid-Autumn Festival (the 15th day of August) in country X?

Input Format

A single line containing a positive integer $a$.

Output Format

A single line containing a positive integer representing the answer.

Samples

1

15

114514

114528