2.34 - Give change

Objetive
Create a C# program to return the change of a purchase, using coins (or bills) as large as possible. Assume we have an unlimited amount of coins (or bills) of 100, 50, 20, 10, 5, 2 and 1, and there are no decimal places. Thus, the execution could be something like this:

Price? 44
Paid? 100
Your change is 56: 50 5 1

Price? 1
Paid? 100
Your change is 99: 50 20 20 5 2 2


Solution
using System;
public class Exercise053
{
    public static void Main()
    {
        int price, paid, change;
        
        Console.Write("Price? ");
        price = Convert.ToInt32(Console.ReadLine());
        Console.Write("Paid? ");
        paid = Convert.ToInt32(Console.ReadLine());
        
        change = paid - price;
        Console.Write("Your change is {0}: ", change);
        while (change > 0)
        {
            if (change >= 50)
            {
                Console.Write("50 ");
                change-=50;
            }
            else
            {
                if (change >= 20)
                {
                    Console.Write("20 ");
                    change-=20;
                }
                else
                {
                    if (change >= 10)
                    {
                        Console.Write("10 ");
                        change-=10;
                    }
                    else
                    {
                        if (change >= 5)
                        {
                            Console.Write("5 ");
                            change-=5;
                        }
                        else
                        {
                            if (change >= 2)
                            {
                                Console.Write("2 ");
                                change-=2;
                            }
                            else
                            {
                                Console.Write("1 ");
                                change-=1;
                            }
                        }
                    }
                }
            }
        }
        Console.WriteLine();
    }
}


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