import java.lang.String;
import java.lang.Long;
import java.math.BigInteger;

public class stuff {

 public static void
 main(String[] argv)
 {
  if (argv.length > 0) {
   String s = argv[0];
   BigInteger input1 = new BigInteger(s, 16);
   BigInteger mask1 = new BigInteger("18374686479671623680");
   BigInteger mask2 = new BigInteger("71776119061217280");
   BigInteger mask3 = new BigInteger("69269232549888");
   BigInteger mask4 = new BigInteger("4278190080");
   BigInteger mask5 = new BigInteger("16711680");
   BigInteger mask6 = new BigInteger("65280");
   BigInteger mask7 = new BigInteger("255");
   BigInteger section1 = BigInteger.valueOf(0);
   BigInteger section2 = BigInteger.valueOf(0);
   BigInteger section3 = BigInteger.valueOf(0);
   BigInteger section4 = BigInteger.valueOf(0);
   BigInteger section5 = BigInteger.valueOf(0);
   BigInteger section6 = BigInteger.valueOf(0);
   BigInteger section7 = BigInteger.valueOf(0);
   BigInteger section1s = BigInteger.valueOf(0);
   BigInteger section2s = BigInteger.valueOf(0);
   BigInteger section3s = BigInteger.valueOf(0);
   BigInteger section4s = BigInteger.valueOf(0);
   BigInteger section5s = BigInteger.valueOf(0);
   BigInteger section6s = BigInteger.valueOf(0);
   BigInteger section7s = BigInteger.valueOf(0);
   section1 = (input1.and(mask1));
   section1s = section1.shiftRight(30);
   section2 = (input1.and(mask2));
   section2s = section2.shiftRight(14);
   section3 = (input1.and(mask3));
   section3s = section3.shiftLeft(2);
   section4 = (input1.and(mask4));
   section4s = section4.shiftRight(30);
   section5 = (input1.and(mask5));
   section5s = section5.shiftRight(14);
   section6 = (input1.and(mask6));
   section6s = section6.shiftLeft(2);
   section7 = (input1.and(mask7));
   section7s = section7.shiftLeft(18);
   BigInteger output = section1s.add(section2s.add(section3s.add(section4s.add(section5s.add(section6s.add(section7s))))));
   System.out.println("Output: " + output);
  } else {
    System.out.println("usage: hexadecimal");
  }
 }
}