ӣţţ  ţţƭ  ţţ  ţţ淨  ţţ  ţţ  ţţֱ  ţţ淨  ţţ  ţţ  ţţ½  ţţƻ  ţţע  ţţ  ţţƭ  ţţ  ţţ  ţţƭ  ţţ  ţţ