using System;

public class Program

{

    public static void Main()

    {

        int count=0;

        char[] letters=new char[10];

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

            Console.WriteLine("Enter char "+i);

            letters[i]=char.Parse(Console.ReadLine());

        }

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

            if(letters[letters.Length-2]==letters[i]&&letters[letters.Length-1]==letters[i+1]){

                count+=1;

            }

        }

        Console.WriteLine("The count is: "+count);

    }

}