import java.io.*;
import java.nio.*;
import java.nio.channels.*;

public class a implements ReadableByteChannel {
   public static void main(String args[]) throws Exception {
      InputStream is = Channels.newInputStream(new a());
      System.out.println(is.read());
      System.out.println(is.read());
   }
   int count;
   public int read(ByteBuffer dst) {
       count++;
       if (count > 1) {
          return 1;
       }
       return 0;
   }
   public void close() {}
   public boolean isOpen() { return true;}
}