getting a string from a list, where string contains defined text

[#1]

Hi,

can someone help me please? I have created a list that looks something like that:

{"C1234_here_is_some_text", "C1235_here_is_some_other_text", "C1236_you_get_the_idea", ..., "C2000_still_dont_ends_here"}

I want to get the complete string of the list where the first part of the string (e.g. "C1234") is "C1999".

Whats the correct code here?

Thank you in advance

[#2]

This is how I would do it

Names Default To Here( 1 );
x = {"C1234_here_is_some_text", "C1235_here_is_some_other_text", "C1236_you_get_the_idea", ..., "C2000_still_dont_ends_here"};

found = "Not Found";
For( i = 1, i <= N Items( x ), i++,
	If( Contains( x[i], "C1999" ) == 1,
		found = x[i];
		Break()
	)
);
show(found);