import java.util.Scanner;
public class 高低位交换 {
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		long x=scanner.nextLong();
		String str = String.format("%32s",Long.toBinaryString(x));
		str=str.replace(" ", "0");
		String tmp=str.substring(0, 16);
		str=str.concat(tmp).substring(15);
		System.out.println(Long.parseLong(str,2));
		
	}
}

求大佬看看 过不了#3 #7 #8