02. Letters, Symbols, Numbers

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

class Program
{
    static void Main()
    {
        int n = int.Parse(Console.ReadLine());
        string input = "";
        string alphabet = " abcdefghijklmnopqrstuvwxyz";
        int lettersSum = 0;
        int numbersSum = 0;
        int symbolsSum = 0;

        for (int i = 0; i < n; i++)
        {
            input += Console.ReadLine().ToLower();
        }
        char[] delimiterChars = { ' ', '\t', '\n', '\r' };
        string[] splittedInput = input.Split(delimiterChars);
        string stringToCount = "";
        foreach (string symbol in splittedInput)
        {
            stringToCount += symbol;
        }

        for (int i = 0; i < stringToCount.Length; i++)
        {

                int digit = 0;
                bool checkIsDigit = Int32.TryParse(stringToCount[i].ToString(), out digit);
                if (alphabet.Contains(stringToCount[i]))
                {
                    lettersSum += (alphabet.IndexOf(stringToCount[i]) * 10);
                }
                else if (checkIsDigit)
                {
                    numbersSum += (digit * 20);
                }
                else
                {
                    if (stringToCount[i].ToString() != string.Empty)
                    {
                        symbolsSum += 200;
                    }
                }

        }
        Console.WriteLine(lettersSum);
        Console.WriteLine(numbersSum);
        Console.WriteLine(symbolsSum);
    }
}