import java.util.*;

public class Main{
public static void main(String... args){
Scanner sc = new Scanner(System.in);
String a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
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 a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
}
} Main public static void main(String... args){
Scanner sc = new Scanner(System.in);
String a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
} main {
Scanner sc = new Scanner(System.in);
String a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String a=sc.next(); a sc.next() sc.next sc String b=sc.next(); b sc.next() sc.next sc int ab=Integer.parseInt(a+b); ab Integer.parseInt(a+b) Integer.parseInt Integer a+b a b for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
} int i=1; int i=1; i 1 i<=Math.sqrt(100100) i Math.sqrt(100100) Math.sqrt Math 100100 i++ i++ i {
if(i*i==ab){
System.out.println("Yes");return;
}
} {
if(i*i==ab){
System.out.println("Yes");return;
}
} if(i*i==ab){
System.out.println("Yes");return;
} i*i==ab i*i i i ab {
System.out.println("Yes");return;
} System.out.println("Yes") System.out.println System.out System System.out "Yes" return; 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 a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
}
} public class Main{
public static void main(String... args){
Scanner sc = new Scanner(System.in);
String a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
}
} Main
import java.util.*;

public class Main{
public static void main(String... args){
Scanner sc = new Scanner(System.in);
String a=sc.next();
String b=sc.next();
int ab=Integer.parseInt(a+b);
for(int i=1;i<=Math.sqrt(100100);i++){
if(i*i==ab){
System.out.println("Yes");return;
}
}
System.out.println("No");
}
}