Perfect Square Checker

You are given a positive integer (N). Your task is to determine whether (N) is a perfect square. In other words, check if there exists an integer (x) such that (x^2 = N). If (N) is a perfect square, output "Yes"; otherwise, output "No".

Note: The input (N) satisfies (1 \leq N \leq 10^9).

inputFormat

Input is provided via standard input (stdin) and consists of a single integer (N).

outputFormat

Output a single line to standard output (stdout) containing either "Yes" if (N) is a perfect square or "No" otherwise.## sample

16

Yes