ดู Code ให้หน่อยนะครับ Console.Write("Input Money : ") Convert.ToInt16(Console.ReadLine());

            	int money  = 0;
                int a = 0;
                int b = 0;
                int c = 0;
                int d = 0;

                int sum1 = 0;



                Console.Write("Input Money : ");
                money = Convert.ToInt16(Console.ReadLine());


	            if(money>=1000)
	            {
		            a = (money/1000);
		            sum1 = money - (a*1000);
	            }
	            if(sum1 >= 500)
	            {
		            b = (money/500);
		            sum1 = money-(b*500);	
	            }
	            if(money>=100)
	            {
		            c = (money/100);
		            sum1 = money-(c*100);	
	            }

                Console.WriteLine("1000 Bath   =   "+a);
                Console.WriteLine("500 Bath   =   " +b);
                Console.WriteLine("100 Bath   =   " +c);
                Console.Write("50 Bath   =   " +d);
                Console.Read();