Problem A -VJ CONTEST

import java.math.BigInteger;
import java.util.Scanner;



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


public class Main {


    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);


        for (int i = 0; i < i+1; i++) {
            String num=input.next();
            char c=num.charAt(0);
            String s=String.valueOf(c);
            if(s.equals("-")){
                break;
            }else{
                String check="";
                if(num.length()>2) {
                    char cc = num.charAt(1);
                    String ss = String.valueOf(cc);
                    check=s+ss;
                }


                if(check.equals("0x")){
                    String v="";
                    for (int j = 2; j <num.length() ; j++) {
                        char cx=num.charAt(j);
                        String sx=String.valueOf(cx);
                        v=v+sx;
                    }
                    Integer dec=Integer.parseInt(v,16);
                    System.out.println(dec);
                }else{
                    Integer hex=Integer.valueOf(num);
                    String hexa=Integer.toHexString(hex);
                    hexa=hexa.toUpperCase();
                    String p="0x";
                    hexa=p+hexa;
                    System.out.println(hexa);
                }




            }



        }
    }
}