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