Perfect Square Without Sqrt

Difficulty: Medium

Phase: 1 · Conditional Thinking

XP Reward: 20 XP

Topics: Conditional Thinking, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Check whether a given non-negative integer N (up to 10000) is a perfect square. Print 'Yes' or 'No'. Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: 25

Output: Yes

Explanation: Sample execution for input 25