ӣţţô  ţţƭ  ţţ淨  ţţ  ţţ½  ţţ  ţţô  ţţ½  ţţô  ţţô  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţֱ