using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication11
{
    class Program
    {
        static void Main(string[] args)
        {
            double[] coins = { 10, 5, 2, 1, 0.5, 0.1 };
            int[] numOfCouns = { 0, 0, 0, 0, 0, 0 };
            double price, pay, change;
            Console.Write("Enter the price of the item: ");
            price = double.Parse(Console.ReadLine());
            Console.Write("Enter your payment: ");
            pay = double.Parse(Console.ReadLine());

            change = pay - price;

            Console.WriteLine("You need to pay: ");

            for (int i = 0; i < coins.Length; i++)
            {
                while (coins[i] <= change)
                {
                    numOfCouns[i]++;
                    change -= coins[i];
                }
                Console.WriteLine("{0} coins of {1}", numOfCouns[i], coins[i]);
            }
        }
    }
}