100861: [AtCoder]ABC086 B - 1 21

Memory Limit:256 MB Time Limit:2 S
Judge Style:Text Compare Creator:
Submit:0 Solved:0

Description

Score : $200$ points

Problem Statement

AtCoDeer the deer has found two positive integers, $a$ and $b$. Determine whether the concatenation of $a$ and $b$ in this order is a square number.

Constraints

  • $1$ $≤$ $a,b$ $≤$ $100$
  • $a$ and $b$ are integers.

Input

Input is given from Standard Input in the following format:

$a$ $b$

Output

If the concatenation of $a$ and $b$ in this order is a square number, print Yes; otherwise, print No.


Sample Input 1

1 21

Sample Output 1

Yes

As $121$ $=$ $11$ × $11$, it is a square number.


Sample Input 2

100 100

Sample Output 2

No

$100100$ is not a square number.


Sample Input 3

12 10

Sample Output 3

No

Input

题意翻译

将给出的两个正整数a,b连在一起(ab),判断是否为完全平方数

加入题单

上一题 下一题 算法标签: