private string OutPutString()
        {
            string outPut = "";
            // set preference
            bool odd = isOdd(preference);

            if (mixCount == 1 && odd)
            {
                outPut += x.Ping(state);
            }
            else if (mixCount == 1 && !odd)
            {
                outPut +=
            }
            return(outPut);
        }