import java.util.ArrayList;
import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 入力値を取得
		int a = sc.nextInt();
		int b = sc.nextInt();
		String aStr = String.valueOf(a);
		String bStr = String.valueOf(b);
		String abStr = aStr + bStr;
		int ab = Integer.parseInt(abStr);
		boolean squareFlag = false;
		// 約数を求める
		ArrayList <Integer> divList = new ArrayList<Integer>();
		for(int i = 1; i <= ab ; i++){
			if(ab%i == 0 && ab/i == i){
				squareFlag = true;
			}
		}
		if(squareFlag){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz