private void dumpCell(String digit, int width, boolean isLast, PrintStream out)	{
		StringBuffer tab = new StringBuffer(" ");
		for (int i = 0; i < width - 1 - digit.length(); i++)
			tab.append(' ');
			
		String s = tab+digit;
		if (!isLast && s.length() > width && width > 2)
			s = s.substring(0, width);
			
		out.print(s);
	}