Count Ones in Binary

You are given a single integer number n. Your task is to count the number of 1s in the binary representation of n and output this count.

Input

The first line contains a single integer n (1 ≤ n ≤ ).

Output

A single integer: the number of 1s in the binary representation of n.

Examples

Input
Output
5
2
1023
10
 

Constraints

Time limit: 1 seconds

Memory limit: 512 MB

Output limit: 1 MB

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