BeerStock

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

namespace _02.Problem_BeerStock
{
    class BeerStock
    {
        static void Main(string[] args)
        {
            uint reservedBeers = uint.Parse(Console.ReadLine());
            string inputData = Console.ReadLine();
            uint allBeers = 0;

            while (inputData != "Exam Over")
            {
                string[] inputDataSplit = inputData.Split(' ');
                uint numBeers = uint.Parse(inputDataSplit[0]);

                if (inputDataSplit[1] == "beers")
                {
                    allBeers += numBeers;
                }
                else if (inputDataSplit[1] == "cases")
                {
                    uint calcBeersInCases =  numBeers * 24;
                    allBeers += calcBeersInCases;
                }
                else if (inputDataSplit[1] == "sixpacks")
                {
                    uint calcBeersInSixpacks = numBeers * 6;
                    allBeers += calcBeersInSixpacks;
                }

                inputData = Console.ReadLine();
            }

            if (allBeers >= 100)
            {
                allBeers = allBeers - (allBeers / 100);
            }

            if (allBeers >= reservedBeers)
            {
                uint beersLeft = allBeers - reservedBeers;

                uint leftCases = beersLeft / 24;
                uint beersLeftFromCases = beersLeft - (leftCases * 24);

                uint leftSixpacks = beersLeftFromCases / 6;
                uint leftBeers = beersLeftFromCases - (leftSixpacks * 6);

                Console.WriteLine("Cheers! Beer left: {0} cases, {1} sixpacks and {2} beers.", leftCases, leftSixpacks, leftBeers);
            }

            else
            {
                uint notEnought = reservedBeers - allBeers;

                uint needCases = notEnought / 24;
                uint beersLeftFromCases = notEnought - (needCases * 24);

                uint needSixpacs = beersLeftFromCases / 6;
                uint needBeer = beersLeftFromCases - (needSixpacs * 6);

                Console.WriteLine("Not enough beer. Beer needed: {0} cases, {1} sixpacks and {2} beers.", needCases, needSixpacs, needBeer);
            }
        }
    }
}