ӣţţ  ţţ¼  ţţ淨  ţţ  ţţ  ţţ  ţţô  ţţƻ  ţţ  ţţƻ  ţţ  ţţ  ţţ  ţţ  ţţ½  ţţ½  ţţ  ţţ½  ţţô  ţţ