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Is A Power Of 2

1. You are given a number n. 2. You have to check whether it is a power of 2 or not.

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Is A Power Of 2

easy

1. You are given a number n. 2. You have to check whether it is a power of 2 or not.

Constraints

1 <= n <= 10^9

Format

Input

A number n

Output

true/false

Example

Sample Input

1024

Sample Output

true

Question Video

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