public sealed class Сoo
        {
            private readonly int _id;
 
            public Сoo(int id)
            {
                _id = id;
            }
            public static IEnumerable<Сoo> Generate(int numberOfElements)
            {
                return Enumerable.Range(1, numberOfElements).Select(id => new Сoo(id + 1));
            }
        }
 
        static void Main(string[] args)
        {
            var elements = Сoo.Generate(100);
        }