PolyndromString

        public static int Polyndrom(string st)
        {
            string current;
            int m, maxLength = 0;
            for (int i = 0; i < st.Length; i++)
            {
                current = "";
                m = 1;
                if (st[i] == '*')
                {
                    while (((i - m) >= 0 && (i + m) < st.Length) && (st[i - m] == st[i + m]))
                    {
                        current += st[i - m];
                        m++;
                    }
                    if (current.Length * 2 + 1 > maxLength)
                        maxLength = current.Length * 2 + 1;
                }
            }
            return maxLength;
        }
        static void Main(string[] args)
        {
            int num;
            string st;
            Console.WriteLine("String: ");
            st = Console.ReadLine();
            num = Polyndrom(st);
            Console.WriteLine("Longest polyndrom with a '*' in the middle: " +num);
        }