// remove spaces, commas, etc from numbers

// copyright Paul Garrett, GNU Public License, July 2000

public class Clean {

	 public static void main(String[] argv) {
		  System.out.println(clean(argv[0]));
	 }

	 public final static String clean(String str) {
		  StringBuffer buff = new StringBuffer("");;
		  if ( str.charAt(0) == '-' || Character.isDigit( str.charAt(0) ) == true ) {
				buff.append( str.charAt(0) );
		  }
		  for (int i=1; i<str.length(); i++) {
				if (Character.isDigit( str.charAt(i) ) == true ) {
					 buff.append( str.charAt(i) );
				}
		  }
		  return buff.toString();
	 }

}

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