ӣţţ  ţţ½  ţţ  ţţƭ  ţţ  ţţ  ţţͼ  ţţ  ţţע  ţţ  ţţͼ  ţţ  ţţ  ţţƭ  ţţ  ţţ  ţţƭ  ţţ  ţţ  ţţô