using System.Collections;
public static void Main()
List<int> number = new List<int>[1,2,5,10,20,50,100,200,500];
Console.WriteLine("500 : " + output);
input = input - (500 * output);
Console.WriteLine("200 : " + output);
input = input - (200 * output);
Console.WriteLine("10 : " + output);
input = input - (10 * output);
Console.WriteLine("2 : " + output);
input = input - (2 * output);
Console.WriteLine("1 : " + output);