using System; using System.Linq; namespace CSharpExercises.Exercises.LINQ { class UppercaseOnlyTask { public static void Main() { string word = "THIS is UPPERCASE string LOL"; var uppercaseOnly = word.Split(' ').Where(x => string.Equals(x, x.ToUpper())); foreach (var u in uppercaseOnly) { Console.Write($"{u}, "); // THIS, UPPERCASE, LOL, } } } }