/* package whatever; // don't place package name! */

/* The class name doesn't have to be Main, as long as the class is not public. */
import sun.misc.BASE64Decoder; 
class Main
{
  public static void main (String[] args) throws java.lang.Exception
  {
  String encodedBytes ="LyJwNh9iPil3MyMSGRhWCCpXBExXAWZBGg1eFjNcShpSCmZxCwJSAC9TBDxbBTRfCw9KRDNbHkxHCzISBwNBAyNcRkxJAWZfBQlHASgSDgkTEilAAwtWRCRTHg9bATUSBANURCRXHg1fASg=";
  String message = java.util.prefs.Base64.byteArrayToBase64(encodedBytes.getBytes("UTF-8")); 
  String paramString = "jl3dF2";
  int paramInt= 2;
  String str= "";
  
      System.out.println("----------------- START ---------------------");
           for (int i = 0; i < message.length(); i++)
      {
        int k = paramString.charAt(i % paramString.length());
        int j = message.charAt(i);
        k &= 1 << paramInt;
        str = str + (k ^ j);
      }
      System.out.println(str);
  }
}