class Z_class
        {
            public string[] SSS;
            public int[] qq;
            bool[] b2;  //признак обработанной строки
            public string this[int q]
            {
                get
                {
                    if (b2 == null)
                        b2 = new bool[SSS.Length];
                    if (!b2[q])
                    {
                        b2[q] = true;
                        SSS[q] = SSS[q] + qq[q];
                    }
                    return SSS[q];
                }
            }
          
        }
        void K1()
        {
            Z_class = new  Z_class();
            string[] SSS = new string[2000000];
            int[] qq = new int[SSS.Length];

            for (int q = 0; q < 2000000; q++)
            {
                SSS[q] = "sssssss";
                qq[q] = q;
            }
            xxx.SSS= SSS;
            xxx.qq = qq;
        }