ӣţţ½  ţţ  ţţô  ţţƻ  ţţ¼  ţţƻ  ţţ  ţţ  ţţֱ  ţţ  ţţֱ  ţţƻ  ţţ½  ţţ  ţţ淨  ţţô  ţţע  ţţע  ţţ  ţţ½