Trophon the Grumpy Cat

namespace Trophon
{
    using System;
    using System.Linq;
    public class Trophon
    {
        public static void Main(string[] args)
        {
            long[] numbers = Console.ReadLine().Split().Select(long.Parse).ToArray();

            int targetIndex = int.Parse(Console.ReadLine());
            string size = Console.ReadLine();
            string type = Console.ReadLine();

            long leftSum = numbers
                .Take(targetIndex)
                .Where(num => IsValid((int)num, (int)numbers[targetIndex], size, type))
                .Sum();

            long rightSum = numbers
                .Skip(targetIndex + 1)
                .Where(num => IsValid((int)num, (int)numbers[targetIndex], size, type))
                .Sum();

            Console.WriteLine(leftSum >= rightSum ? "Left - " + leftSum : "Right - " + rightSum);
        }

        public static bool IsValid(int number, int targetNumber, string size, string type)
        {
            if (size == "cheap")
            {
                if (targetNumber > number)
                {
                    return IsValidType(number, size, type);
                }
            }
            else
            {
                if (targetNumber <= number)
                {
                    return IsValidType(number, size, type);
                }
            }

            return false;
        }

        public static bool IsValidType(int number, string size, string type)
        {
            if (type == "positive")
            {
                if (number > 0)
                {
                    return true;
                }
                return false;
            }

            if (type == "negative")
            {
                if (number < 0)
                {
                    return true;
                }
                return false;
            }

            return true;
        }
    }
}