ӣţţ  ţţ  ţţƻ  ţţƭ  ţţ  ţţ½  ţţ  ţţ  ţţ  ţţ¼  ţţô  ţţ  ţţ½  ţţ  ţţ  ţţ  ţţ½  ţţ  ţţ  ţţ