Poj Solution 1781

http://poj.org/problem?id=1781

//* @author: 82638882@163.com
import java.io.*;
public class Main
{
 public static void main(String[] args) throws NumberFormatException, IOException
 {
    InputStreamReader is=new InputStreamReader(System.in);
    BufferedReader in=new BufferedReader(is);
    while(true)
    {
        String s=in.readLine();
     if(s.equals("00e0")) break;
     int a=(int)(((s.charAt(0)-'0')*10+s.charAt(1)-'0')*Math.pow(10, s.charAt(3)-'0'));
     s=Integer.toBinaryString(a);
     s=s.substring(1)+s.charAt(0);
     a=Integer.parseInt(s, 2);
     System.out.println(a);
    }
  }
}