ӣţţ  ţţ  ţţ  ţţ  ţţô  ţţ½  ţţע  ţţ  ţţע  ţţ¼  ţţ  ţţ  ţţ  ţţͼ  ţţ  ţţƻ  ţţ  ţţ  ţţ  ţţô