help!!! reformat string using c#

Input: ^Cantos^Kenneth^A^^MD^^^
Definition： ^ is used to identify each element, for example in this case, Cantos Kenneth A and MD are four elements.
Requirement: remove the first element and make sure the final output shown below.

输出的最终结果为： ^Lname^Fname^MidName

Note: 输入的字符串长度不定

Thanks in advance for any input, --------------------编程问答--------------------

--------------------编程问答-------------------- 嘿嘿，本来想来帮LZ分析分析什么问题，可一看是E文，俺看不懂了，帮顶了。。 --------------------编程问答-------------------- 没看懂需求，移除掉第一个项，输出如下怎么扯到 name了？ what's name？ --------------------编程问答--------------------

引用 3 楼 zhenglj 的回复:

没看懂需求，移除掉第一个项，输出如下怎么扯到 name了？ what's name？

输出的最终结果为： ^Kenneth^A^MD
--------------------编程问答-------------------- string input = "^Cantos^Kenneth^A^^MD^^^";
string[] inputtemp = input.Split['^'];
System.Collections.Specialized.StringCollection newinput = new System.Collections.Specialized.StringCollection();
string inputiteration = string.Empty;
string output = string.Empty;
for (int i=0; i<inputtemp.length; i++)
if (inputtemp[i] !="")
{
  newinput.Add("^"+inputtemp[i]);
}
/*in my case, I need to finalize the format of output like **^Lastname^Firstname^Middlename
*/

if (newinput.Count > 3)
                        {
                                output = newinput[0] + newinput[1] + newinput[2];
                        }
                        else
                        {
                                foreach ( string str in newinput)
                                    inputiteration += str;
                                output = inputiteration + "^" + "No MiddleName";
                        }

I think I got it.

补充：.NET技术 ,  C#