import java.util.Scanner;
public class areaOfSquare
{
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter length of square");
        double len=sc.nextDouble();

        /*Formula of area of square =length of square ^ 2 or(length of square * length of square )*/
        double area=len*len;
        System.out.println("Area of square="+area);
     }
}