Problem: 

Input

The input contains a single integer a (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples

Input

3


Output

8


Input

10


Output

1024

Solution (in JAVA):

Solution:
//package com.company;

/*
author :- Shubham Saini


*/

import java.util.Collections;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Arrays;
import java.util.*;
import java.lang.*;
import java.io.*;

public class Main
{
    public static void main(String arg[])throws IOException
    {
        Scanner sc=new Scanner(System.in);
        long n=sc.nextLong();
        if(n%2==0)
        {
            System.out.println("0");
        }
        else{
            System.out.println("1");
        }




    }
}