import java.*;
import java.math.*;
import java.util.*;
 
 
/**
 *
 * @author tiirz
 */
public class Main {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner in=new Scanner(System.in);
        BigInteger m;
        int n;
        n=2;
        BigInteger a = BigInteger.valueOf(2);
        n=in.nextInt();
        m=a.pow(n);
	BifInteger g=a.multiply(a.add(BigInteger.valueOf(1))).divide(BigInteger.valueOf(2));
        System.out.println(m);
 
    }
 
}