import java.util.Scanner;  //Scanner class helps to get input from user
class triangle {
  public static void main(String[] args) {
    Scanner s = new Scanner(System.in);  //Scanner class object declaration
    System.out.println("Enter the length of a side: ");
    float l = s.nextFloat();  // takes float input length from keyboard or user or run time
    float area = l * l;
    System.out.println("Area of Square: "+ area);
  }
}