BinaryDigitsCount

using System;

namespace BinaryDigitsCount
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());
            int binaryDigit = int.Parse(Console.ReadLine());
            int count = 0;

            while (number != 0)
            {
                int bitReminder = number % 2;// return only 1 or 0
                if (bitReminder == binaryDigit)
                {
                    count++;
                }
                number = number / 2;// we divide by 2, because binary system base 2
            }
            Console.WriteLine(count);

          }
        }
      }