class Demo {
    static int power (int x, int n) {
	int result = 0;
	System.out.println("power(" + x + ", " + n + ")");
	if (n == 0)
	    result = 1;
	else
	    result = x * power (x, n-1);
	System.out.println("power(" + x + ", " + n + ") = " + result);
	return result;
    }

    public static void main (String[] args) {
	int x = Integer.parseInt(args[0]);
	int n = Integer.parseInt(args[1]);
	int xn = power(x, n);
	System.out.println(xn);
    }
}