domic_for11

package domic;

import java.util.Scanner;

public class for2_11{
    public static void main(String[] args){

    Scanner in = new Scanner (System.in);

        System.out.print("k: ");
        long k = in.nextLong();

        long n = 2;
        byte x = 0;
        while(x == 0)
        {
            long cn = n;
            while(cn > 0)
            {
                if (k == 1)
                {
                    while (cn/10 > 0)
                        cn/=10;
                    x = (byte)(cn%10);
                    break;
                }
                long ccn = cn;
                byte ci=1;
                while (ccn >9)
                {
                    ccn/=10;
                    ci*=10;
                }

                cn%=ci;
                k--;
            }
            n*=2;
        }
        System.out.println(x);
    }
}