if(index>-1)
        {
            CString numberstring=Str.Right(Str.GetLength()-index-1);
            int number=isNumeric(numberstring);
            if(number>-1)
            {
                number++;
                numberstring.Format("%i",number);
                while(numberstring.GetLength()<3)
                    numberstring="0"+numberstring;
                Str=Str.Left(index+1)+numberstring;
                return;
            }
            if(!numberstring.GetLength())
            {
                Str+="000";
                return;
            }
        }