ื”ืงืจื ื” ืžื™ื•ื—ื“ืช: ื”ืื•ื“ื™ืกืื” + ื”ืจืฆืื” ืžืคื™ ื“"ืจ ืฉื™ ื‘ื™ื“ืจืžืŸ