import java.util.*;

public class FunctionExercise1 {
  static Scanner scanner = new Scanner(System.in);

  public static void main(String args[]) {
    int Input = 0;
    System.out.print("Please a number : ");
    Input = scanner.nextInt();
    Square(Input);
    System.out.println("Square of " + Input + " is " + Square(Input));
  }

  public static int Square(int N) {
    return N * N;
  }
}