import java.util.Scanner;

public class Main {

    /**

     * @param args

     */

    public static void main(String[] args) {

        // TODO Auto-generated method stub

        char str[]=new char[1000];

        str[999]='1';

        for(int i=0;i<999;i++){

            str[i]='0';

        }

        int power;

        Scanner cin=new Scanner(System.in);

        power=cin.nextInt();

        int plus=0;

        for(int i=0;i<power;i++){

                for(int j=999;j>=0;j--){

                    int temp=(str[j]-'0')*2%10+plus;

                    plus=(str[j]-'0')*2/10;

                    str[j]=(char) (temp+'0');

                }

        }

        int pos = 0;

        while(str[pos]=='0'){

            pos++;

        }

        for(;pos<1000;pos++){

            System.out.print(str[pos]);

        }

        System.out.println();

    }

}