import java.io.BufferedReader;
import java.io.Reader;
import java.io.FileReader;
import javax.xml.parsers.*;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
class Lab3 {
  static public void main(String[] args) throws Exception {
    SAXParserFactory factory = SAXParserFactory.newInstance();
    SAXParser saxParser = factory.newSAXParser();
    XMLReader xmlReader = saxParser.getXMLReader();
    Reader reader = MyReader.getReader( args[0] );
    InputSource in = new InputSource (reader);
    xmlReader.parse( in );
} }
class MyReader extends BufferedReader {
    MyReader( FileReader fr ){
      super( fr );
    }
    public int read() throws java.io.IOException {
      int ch = super.read();
      return ch;
    }
    public int read(char[] cbuf, int off, int len)
                                throws java.io.IOException {
      char [] chs = new char[cbuf.length];
      int n = 0;
      while ( n < len ) {
         int k = super.read(chs, off + n, len - n);
         if( k < 0 ) { break; }
         n += k;
         if( !super.ready() ){ break; }
      }
      for( int i=0; i<n; i++ ){ cbuf[i] = chs[i]; }
      return n;
    }
    public String readLine() throws java.io.IOException{
      String s = super.readLine();
      return s;
    }
    static MyReader getReader( String fileName ) throws Exception{
      FileReader fr  = new FileReader( fileName );
      return    new MyReader( fr );
    }
}