Coffee Orders

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

namespace Programming_Fundamentals_Exams
{
    class Program
    {
        static void Main(string[] args)
        {
            var countOfOrders = int.Parse(Console.ReadLine());
            var sum = 0m;
            for (int i = 0; i < countOfOrders; i++)
            {
                var pricePerCapsule = decimal.Parse(Console.ReadLine());
                var date = Console.ReadLine();
                var dateParsed = DateTime.ParseExact(date, "d/M/yyyy", CultureInfo.InvariantCulture);
                var capsuleCount = long.Parse(Console.ReadLine());
                var days = DateTime.DaysInMonth(dateParsed.Year, dateParsed.Month);
                var priceTotal = (days * capsuleCount) * pricePerCapsule;

                Console.WriteLine("The price for the coffee is: ${0:F2}", priceTotal);
                sum += priceTotal;
            }
            Console.WriteLine("Total: ${0:F2}", sum);
        }
    }
}