FirefightingOrganization

using System;
using System.Collections.Generic;
using System.Linq;

namespace FirefightingOrganization
{
    class Program
    {
        static void Main(string[] args)
        {
            int numberOfFirefighters = int.Parse(Console.ReadLine());
            string inputString = Console.ReadLine();
            int numberOfKidsSaved = 0;
            int numberOfAdultsSaved = 0;
            int numberOfSenionrsSaved = 0;
            while (!inputString.Equals("rain"))
            {
                int currentNumberOfFirefighters = numberOfFirefighters;
                List<char> peopleInBuilding = new List<char>();
                peopleInBuilding = inputString.ToList();
                while (peopleInBuilding.Contains('K') && currentNumberOfFirefighters > 0)
                {
                    int index = peopleInBuilding.IndexOf('K');
                    numberOfKidsSaved++;
                    currentNumberOfFirefighters--;
                    peopleInBuilding.Remove(peopleInBuilding[index]);
                    if (currentNumberOfFirefighters == 0)
                    {
                        break;
                    }
                }
                while (peopleInBuilding.Contains('A') && currentNumberOfFirefighters > 0)
                {
                    int index = peopleInBuilding.IndexOf('A');
                    numberOfAdultsSaved++;
                    currentNumberOfFirefighters--;
                    peopleInBuilding.Remove(peopleInBuilding[index]);
                    if (currentNumberOfFirefighters == 0)
                    {
                        break;
                    }
                }
                while (peopleInBuilding.Contains('S') && currentNumberOfFirefighters > 0)
                {
                    int index = peopleInBuilding.IndexOf('S');
                    numberOfSenionrsSaved++;
                    currentNumberOfFirefighters--;
                    peopleInBuilding.Remove(peopleInBuilding[index]);
                    if (currentNumberOfFirefighters == 0)
                    {
                        break;
                    }
                }
                inputString = Console.ReadLine();
            }
            Console.WriteLine("Kids: {0}", numberOfKidsSaved);
            Console.WriteLine("Adults: {0}", numberOfAdultsSaved);
            Console.WriteLine("Seniors: {0}", numberOfSenionrsSaved);

        }
    }
}