wtf

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace k3._2
{
    class Program
    {

        static bool CzyLitera(char a)
        {
            if (a>='A'&&a<='Z'||a>='a'&&a<='z')
            {
                return true;
            }
            return false;
        }
        static string Zamienmale(string a)
        {
            string tmp = "";
            char c;
            for (int i = 0; i < a.Length; i++)
            {
                if (CzyLitera(a[i]))
                {
                    if (a[i] >= 'a' && a[i] <= 'z')
                    {
                        tmp += a[i];

                    }
                    if (a[i] >= 'A' && a[i] <= 'Z')
                    {
                        c = (char)(a[i] + ('a' - 'A'));
                        tmp += c;

                    }
                }
                else
                {
                    tmp += a[i];
                }


            }
            return tmp;



        }

        static int IleWyrazow(string tekst, char a, char b, char c)
        {
            string d = Zamienmale(tekst);
            string tmp = "";
            int liczbasekwencji = 0;
            int liczbawyrazow = 0;
            for (int i = 0; i < d.Length; i++)
            {
                if (CzyLitera(d[i])&&i<d.Length)
                {
                    while (i < d.Length&&CzyLitera(d[i]))
                    {
                        tmp += d[i];
                        i++;
                    }

                    for (int j = 0; j < tmp.Length-2; j++)
                    {
                        if (tmp[j]=='a'&&tmp[j+1]!='b'&&tmp[j+2]=='c')
                        {
                            liczbasekwencji++;
                        }
                    }
                    tmp = "";
                    if (liczbasekwencji == 1)
                    {
                        liczbawyrazow++;
                    }


                }
            }
            return liczbawyrazow;


        }
        static void Main(string[] args)
        {

            string b = "katar";

            Console.WriteLine(IleWyrazow(b,'a','l','a'));
            Console.ReadKey();
        }
    }
}