using System;

public class Program
{
	public static void Main()
	{
		string aStr = Console.ReadLine();
		string nStr = Console.ReadLine();

		int a = int.Parse(aStr);
		int n = int.Parse(nStr);

		int sum = 1;

		for(int i = 1; i <= n; i++)
		{
			sum = sum + a;
			a = a*a;
		}

		Console.WriteLine(sum);
	}
}