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Given a positive integer N, print count of set bits in it.

**Example 1:**

Input:N = 6Output:2Explanation:Binary representation is '110' So the count of the set bit is 2.

**Example 2:**

Input:8Output:1Explanation:Binary representation is '1000' So the count of the set bit is 1.

**Your Task:**

You don't need to read input or print anything. Your task is to complete the function **setBits**() which takes an Integer N and returns the count of number of set bits.

**Expected Time Complexity:** O(LogN)

**Expected Auxiliary Space:** O(1)

**Constraints:**

1 ≤ N ≤ 10^{9}

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