EnduranceRally

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

namespace _3P.EnduranceRally
{
    public class EnduranceRally
    {
        public static void Main()
        {
            string[] names = Console.ReadLine().Split();

            double[] zones = Console.ReadLine()
                .Split()
                .Select(double.Parse)
                .ToArray();

            double[] checkPoints = Console.ReadLine().
                Split()
                .Select(double.Parse)
                .ToArray();

            double sum = 0;
            foreach (var person in names)
            {
                foreach (var c in person)
                {
                    var firsteLetter = (int)c;
                    sum = firsteLetter;
                    break;
                }

                for (int i = 0; i < checkPoints.Length; i++)
                {
                    for (int j = 0; j < zones.Length; j++)
                    {
                        if (i == checkPoints[j])
                        {
                            sum =sum + (zones[j]);
                            break;
                        }
                        else
                        {
                            sum =sum - (zones[j]);
                        }
                        break;
                    }
                    Console.WriteLine(sum);

                }

            }
        }
    }
}