using System;   

public class Program    

{   

    public static void Main()   

    {   

        //string input = "aaabbcccaaaac";   

        Console.Write("Input: ");

        string input = Console.ReadLine();  

        int count = 1;  

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

        {   

            if (input[i] == input[i + 1])   

            {   

                count++;    

            }   

            else    

            {   

                Console.WriteLine($"{input[i]} = {count}"); 

                count = 1;  

            }   

        }   

        // To handle the last character in the sequence 

        Console.WriteLine($"{input[input.Length - 1]} = {count}");  

    }   

}   

​