Problem B -VJ CONTEST

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

//import java.io.File;

//import static sun.nio.ch.IOStatus.EOF;

public class Main {

    public static void main(String[] args) throws IOException {
        Scanner in=new Scanner(System.in);
        InputStreamReader es=new InputStreamReader(System.in);
        BufferedReader br=new BufferedReader(es);


        for (int i = 0; i < i+1; i++) {
            String num=in.next();
            if(num.equals("0")){
                break;
            }else{
                Integer x=Integer.parseInt(num);
                String bin=Integer.toBinaryString(x);
                int sum=0;
                for (int j = 0; j <bin.length() ; j++) {
                    char c=bin.charAt(j);
                    String s=String.valueOf(c);
                    int a=Integer.parseInt(s);
                    sum=sum+a;
                }
                System.out.printf("The parity of %s is %d (mod 2).\n",bin,sum);
            }


        }

    }
}