ӣţţƻ  ţţ  ţţ  ţţƻƽ̨  ţţ  ţţ  ţţ淨  ţţ  ţţ  ţţ  ţţ½  ţţע  ţţ  ţţע  ţţ  ţţƭ  ţţ  ţţ¼  ţţͼ  ţţ½