using static System.Console;
using System.Collections.Generic;
using System.Linq;
public class Program {
public static void Main() {
var lst = new List<string>{"123", "Teste 123 Teste", "ABC", "ABCDE123", "1 2 3" };
var filter = lst.Where(s => s.Contains("123") || s.Contains("ABC")).Take(3).ToList();
foreach (var item in filter) WriteLine(item);
}
}
//https://pt.stackoverflow.com/q/134764/101
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