using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace yukicoderTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] str = Console.ReadLine().Split(' ') ;
            int n = int.Parse(str[0]);
            int k = int.Parse(str[1]);
            int x = 1;
            int big = 1;
            int ans = 0;
            int cnt = 0;
            for(int i=1;i<=k;i++)
            {
                x = x * 2;
            }
            for(int i=1;i<=n;i++)
            {
                big = big * 2;
            }
            cnt = big / x;
            Console.WriteLine(cnt);
        }
    }
}