//Lorenzo Gasparini 12/10/2012
//Program that calculates the power of a number with exponent (and number) taken from input
import java.util.Scanner; //importing library for keyboard input

class Es1_3
{
  public static double pow(double n, double m)
  {
    if (m==0) return 1;
    return m>=0 ? n*pow(n,m-1) : pow(n,m+1)/n;
  }

  public static void main (String[] argv)
  {
    Scanner input = new Scanner(System.in); //declarating the input handler

    System.out.println("This program calculates n^m.");
    System.out.print("Insert n: ");
    double n = input.nextDouble(); //taking the number from input

    System.out.print("Insert m: ");
    double m = input.nextDouble(); //taking the exponent from input

    System.out.println("\nThe result is: "+pow(n,m));
  }
}