ӣţţ  ţţ  ţţ  ţţ¼  ţţ  ţţ  ţţͼ  ţţ½  ţţ¼  ţţע  ţţ  ţţ  ţţô  ţţͼ  ţţ  ţţ  ţţ  ţţע  ţţֱ  ţţ