using System.Globalization;

namespace part2;

class Program
{
    static void Main(string[] args)
    {
        // The description does not say this (had to go to reddit to find this)
        // but the strings can combine the same letter for 2 unique numbers
        // i.e. sevenine is "79" not "7ine"

        int sum = 0;

        string letters = "abcdefghijklmnopqrstuvwxyz";
        Dictionary<string, int> written_numbers = new() {
            {"one", 1},
            {"two", 2},
            {"three", 3},
            {"four", 4},
            {"five", 5},
            {"six", 6},
            {"seven", 7},
            {"eight", 8},
            {"nine", 9}
        };

        StreamReader sr = new StreamReader("input");
        String line = sr.ReadLine();
        //Continue to read until you reach end of file
        while (line != null)
        {
            line = line.ToLower();
            List<int> numbers_in_line = [];

            for(int i = 0; i < line.Length; i++) {
                foreach(var number in written_numbers) {
                    if(line[i] == number.Key[0]) {
                        if(string.Compare(line, i, number.Key, 0, number.Key.Length) == 0) {
                            numbers_in_line.Add(number.Value);
                        }
                    }

                    if(char.IsNumber(line[i])) {
                        numbers_in_line.Add(Int32.Parse(line[i].ToString()));
                    }
                }
            }

            sum += numbers_in_line.First() * 10;
            sum += numbers_in_line.Last();

            Console.WriteLine($"Line: {line} - Sum: {sum}");
            line = sr.ReadLine();
        }
        //close the file
        sr.Close();

        Console.WriteLine($"Total Sum: {sum}");
    }
}