Other - Parse multilpl XML tags using regex

hi all.
i need to parse a few tags (their value) from am XML.
this must be done by regex (don't ask me why )

for example:

<name>AAA</name>
<id>1234</id>
<gender>M</gender>

i know the pattern needed for each tag using regex

string name = "(?<=<name>).+?(?=</name>)";
string id = "(?<=<id>).+?(?=</id>)";
string gender = "(?<=<gender>).+?(?=</gender>)";

i just don't know how to init the Regex object to handle all of them.
i can do:

private static readonly Regex rgx1 = new Regex(name);
private static readonly Regex rgx2 = new Regex(id);
private static readonly Regex rgx3r = new Regex(gender);

but I'm guessing that's a terrible waste....

so my question is - how to init a single Regex to handle multiple patterns?
and once i did it , how to extract the values from it?

p.s
I'm programming in c# if anyone need to know....

10x alot !

This uses a back reference so that the closing tag matches the opening tag.

This regular expression will put the name of the tag into group 1 and the value of the tab into group two.