ӣţţƽ̨  ţţ  ţţ  ţţֱ  ţţ淨  ţţ  ţţƻ  ţţ  ţţ  ţţ淨  ţţ  ţţֱ  ţţ½  ţţ  ţţƽ̨  ţţ  ţţô  ţţ  ţţƻƽ̨  ţţ  ţţ  ţţ½  ţţ  ţţ  ţţ淨  ţţ½  ţţ  ţţ¼  ţţ  ţţ½