Linq from list c#

// Single
string search = "testSearch";
 List<string> list = new List<string>(); // Need to create a string list 
 string result = list.Single(s => s == search);

// Find all where meets the criteria
IEnumerable<string> results = list.Where(s => s == search);
// Select first one
string result = list.First(s => s == search);

-1

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