import java.util.*;	
public class Main {	
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    }
} import java.util.*; util.* java public class Main {	
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    }
} Main public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    } main {
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String line = sc.nextLine(); line sc.nextLine() sc.nextLine sc String str[] = line.split(" "); str line.split(" ") line.split line " " double num = Double.parseDouble(str[0] + str[1]); num Double.parseDouble(str[0] + str[1]) Double.parseDouble Double str[0] + str[1] str[0] str 0 str[1] str 1 double square = Math.sqrt(Double.parseDouble(str[0] + str[1])); square Math.sqrt(Double.parseDouble(str[0] + str[1])) Math.sqrt Math Double.parseDouble(str[0] + str[1]) Double.parseDouble Double str[0] + str[1] str[0] str 0 str[1] str 1 if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      } num % square == 0 num % square num square 0 {System.out.println("Yes");
      } System.out.println("Yes") System.out.println System.out System System.out "Yes" {System.out.println("No");
      } System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {	
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    }
} public class Main {	
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    }
} Main
import java.util.*;	
public class Main {	
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      String line = sc.nextLine();	
      String str[] = line.split(" ");	
      double num = Double.parseDouble(str[0] + str[1]);
      double square = Math.sqrt(Double.parseDouble(str[0] + str[1]));
      if(num % square == 0){System.out.println("Yes");
      }else{System.out.println("No");
      }
    }
}