Fasion Boutique

namespace P05FashionBoutique
{
    using System;
    using System.Collections.Generic;
    using System.Linq;

    public class StartUp
    {
        public static void Main(string[] args)
        {
            int[] clothes = Console.ReadLine()
                .Split(" ", StringSplitOptions.RemoveEmptyEntries)
                .Select(int.Parse)
                .ToArray();
            Stack<int> stack = new Stack<int>(clothes);
            int capacity = int.Parse(Console.ReadLine());
            int sum = 0;
            int numberOfRacks = 1;

            while (stack.Count > 0)
            {
                sum += stack.Peek();
                if (sum <= capacity)
                {
                    stack.Pop();
                }
                else
                {
                    numberOfRacks++;
                    sum = 0;
                }

            }
            Console.WriteLine(numberOfRacks);
        }
    }
}