using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace StringWithArray

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.Write("Enter string: ");

​

            var toMatchArray = new string[5]{"a","h","s","n","k"};

            Dictionary<string, int> stringTextValue = new Dictionary<string, int>();

​

            var input = Console.ReadLine();

            var maxValue = 0;

            var maxValueKey = "";

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

            {

                Console.Write(toMatchArray[i]);

​

                int count = 0;

                for (int j = 0; j <= input.Length-1; j++)

                {

                    if (toMatchArray[i].ToString().Equals(input[j].ToString()))

                    {

                        count++;

                    }

                }

                Console.WriteLine(count);

​

                stringTextValue.Add(toMatchArray[i].ToString(), count);

                maxValue = stringTextValue.Values.Max();

                maxValueKey = stringTextValue.FirstOrDefault(m => m.Value == maxValue).Key.ToString();

​

            }

            Console.WriteLine("Max key: " + maxValueKey + "Max Value" + maxValue);

            Console.ReadLine();

        }

    }

}

​