Solve 7n By 8

easy

1. You are given a number n.
2. You have to calculate the value of 7n/8 without using division and multiplication.

Input Format

A number n

Output Format

Check the sample ouput and question video.

Constraints

1 &lt;= n &lt;= 10^9

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input

Output

Is A Power Of 2

Swap All Odd And Even Bits

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