ӣţţ淨  ţţ  ţţ  ţţƻ  ţţƽ̨  ţţ淨  ţţƽ̨  ţţ  ţţ  ţţ¼  ţţ  ţţ  ţţ  ţţ  ţţ½  ţţ½  ţţ½  ţţƭ  ţţ½  ţţ½