Given a non-negative integer n, return the number of consecutive 0-bits at the least-significant end of its binary representation. By convention, if n is 0 return 0.
Input: A JSON object {"n": <non-negative integer>}.
Output: Return the count of trailing zero bits.
Input: {"n":12}
Output: 2
Explanation: 12 is 1100; two trailing zeros -> 2.Input: {"n":8}
Output: 3
Explanation: 8 is 1000; three trailing zeros -> 3.0 <= n <= 10^15