import java.io.InputStream;
import java.io.IOException;
import java.io.FileInputStream;
import java.io.StringBufferInputStream;     // deprecated in recent Java

public class CountBytes
{
  public static void main( String[] args ) throws IOException
  {
    // creating up the input stream -- change here
    
    InputStream dataSource;
    if ( args.length == 0 )
      dataSource = System.in;
    else
      dataSource = new LowerCaseInputStream( new StringBufferInputStream(args[0]) );
    
    // the main processing code -- no changes

    int totalCharacters = 0;
    while ( dataSource.read() != -1 )
      totalCharacters++;

    System.out.println( "" + totalCharacters + " bytes" );
  }
}