ӣţţ  ţţƻƽ̨  ţţ  ţţ  ţţ  ţţô  ţţƽ̨  ţţ  ţţô  ţţ  ţţ  ţţô  ţţ½  ţţ½  ţţ  ţţ½  ţţ  ţţע  ţţ¼  ţţ