Encrypt, Sort and Print Array

using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Numerics;

namespace SoftuniExercisesWithVariables
{
    class Program
    {
        static void Main(string[] args)
        {

            Console.WriteLine("Enter the number of lines you are about to enter: ");
            int lines = int.Parse(Console.ReadLine());
            List<int> numbersList = new List<int>();
            string input = "";
            while (lines > 0)
            {
                int sum = 0;
                input = Console.ReadLine();
                int length = input.Length;
                foreach(char i in input)
                {
                    switch (i)
                    {
                        case 'a':
                        case 'e':
                        case 'i':
                        case 'o':
                        case 'u':
                            sum += ((int)i*length);
                            break;
                        default:
                            sum += ((int)i/length);
                            break;
                    }


                }
                numbersList.Add(sum);
                sum = 0;
                lines--;
            }

            numbersList.Sort();
            foreach(int k in numbersList)
            {
                Console.WriteLine(k);
            }

        }
    }
}