import java.io.*;
public class Voog3b{
  public static void main(String argumendid[]) throws IOException{
    InputStream sisse=new FileInputStream("arvud.dat");
    ByteArrayOutputStream malu=new ByteArrayOutputStream();
    int nr=sisse.read();
    while(nr!=-1){
      malu.write(nr);
      nr=sisse.read();
    }
    byte[] massiiv=malu.toByteArray();
    System.out.println("Failist loeti "+massiiv.length+" baiti.");
  }
}