ӣţţ淨  ţţ  ţţע  ţţ  ţţ  ţţ  ţţ  ţţƭ  ţţƻ  ţţ淨  ţţ½  ţţ  ţţ  ţţ¼  ţţ  ţţ  ţţô  ţţ  ţţ½  ţţ