Sets & Dictionaries Advanced - 05. Count Symbols

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace Advanced
{
    class Program
    {
        static void Main(string[] args)
        {
            var text = Console.ReadLine().ToCharArray();

            var symbols = new SortedDictionary<char, int>();

            for (int i = 0; i < text.Length; i++)
            {
                if (!symbols.ContainsKey(text[i]))
                {
                    symbols[text[i]] = 0;
                }

                symbols[text[i]]++;
            }

            foreach (var symbol in symbols)
            {
                Console.WriteLine($"{symbol.Key}: {symbol.Value} time/s");
            }
        }
    }
}