Reverse and Normal String with out Function

string st = "Welcome";
        string Totstr = "";
        string Totstr1 = "";
        //Reverse String Without Function
        for (int i = st.Length - 1; i >=0 ; i--)
        {
            Totstr = Totstr + st[i];
        }
        Response.Write(Totstr);

        //Actual String Without Function
        string st1 = Totstr;

        for (int i = Totstr.Length-1; i >= 0; i--)
        {
            Totstr1 = Totstr1 + st1[i];
        }
        Response.Write(Totstr1);