Enough Pages - Repovive Starter Round 3 | Repovive

12A. Enough Pages

500 pts1s256 MB

You have a book with $n$ pages.

Each day, you read exactly $7$ pages, except possibly on the last day, when fewer than $7$ pages may remain.

Find the minimum number of days needed to finish the book.

The input contains a single integer $n$ .

n

\text{answer}

Input

Explanation

The book has only one page, so it can be finished on the first day.

Output